. jAlbum 9 slides/American Deputy Beard Mackie Indicator.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN DEPUTY - American Deputy safety lamp with Beard-Mackie sight indicator, aluminum and brass with brass bonnet, 10 3/4 in. tall to top of hook ring, 3 1/2 in. base dia., marked on base ring AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA and marked on bonnet AM. SAFETY LAMP & M. S. CO. SCRANTON, PA, ex-Henry Pohs collection (The Beard-Mackie sight indicator improved the ability of miners to determine the amount of methane present underground by observing the flame and glow on filaments in the flame cap. Invented by James T. Beard and Mathew D. Mackie, both of Scranton, it was first used in March 1903. Based on the fact that as methane levels in the atmosphere are increased, the flame burns hotter. The indicator includes 7 platinum filaments (the top six are looped) attached to a brass frame approximately 3/4 in wide and 3 1/2 in. tall that is situated above the wick tube of the lamp. The bottom straight standard wire is calibrated to glow in the flame cap in open air outside the mine. Each successive wire filament will glow in the mine atmosphere as the methane concentration increases by 1/2 percent until a glowing top filament would indicate a methane concentration of 3 percent. The glass globe is painted black to improve the readability of the indicator. See Steinberg, Mining Artifact Collector #1, pp 18-19) AMERICAN DEPUTY - American Deputy safety lamp with Beard-Mackie sight indicator, aluminum and brass with brass bonnet, 10 3/4 in. tall to top of hook ring, 3 1/2 in. base dia., marked on base ring AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA and marked on bonnet AM. SAFETY LAMP & M. S. CO. SCRANTON, PA, ex-Henry Pohs collection (The Beard-Mackie sight indicator improved the ability of miners to determine the amount of methane present underground by observing the flame and glow on filaments in the flame cap. Invented by James T. Beard and Mathew D. Mackie, both of Scranton, it was first used in March 1903. Based on the fact that as methane levels in the atmosphere are increased, the flame burns hotter. The indicator includes 7 platinum filaments (the top six are looped) attached to a brass frame approximately 3/4 in wide and 3 1/2 in. tall that is situated above the wick tube of the lamp. The bottom straight standard wire is calibrated to glow in the flame cap in open air outside the mine. Each successive wire filament will glow in the mine atmosphere as the methane concentration increases by 1/2 percent until a glowing top filament would indicate a methane concentration of 3 percent. The glass globe is painted black to improve the readability of the indicator. See Steinberg, Mining Artifact Collector #1, pp 18-19) slides/American Deputy Beard Mackie Indicator.JPG slides/Beard Mackie Indicator.html# Sun, 21 Aug 2011 15:34:19 -0600 BEARD-MACKIE SIGHT INDICATOR - American Deputy safety lamp with Beard-Mackie sight indicator, aluminum and brass with brass bonnet, 10 3/4 in. tall to top of hook ring, 3 1/2 in. base dia., marked on base ring AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA and marked on bonnet AM. SAFETY LAMP & M. S. CO. SCRANTON, PA, ex-Henry Pohs collection (The Beard-Mackie sight indicator improved the ability of miners to determine the amount of methane present underground by observing the flame and glow on filaments in the flame cap. Invented by James T. Beard and Mathew D. Mackie, both of Scranton, the patent was awarded on March 10, 1903 for a gas detecting attachment for miners' safety lamps. Based on the fact that as methane levels in the atmosphere are increased, the flame burns hotter. The indicator includes 7 platinum filaments (the top six are looped) attached to a brass frame approximately 3/4 in wide and 3 1/2 in. tall that is situated above the wick tube of the lamp. The bottom straight standard wire is calibrated to glow in the flame cap in open air outside the mine. Each successive wire filament will glow in the mine atmosphere as the methane concentration increases by 1/2 percent until a glowing top filament would indicate a methane concentration of 3 percent. The glass globe is painted black to improve the readability of the indicator. See Steinberg, Mining Artifact Collector #1, pp 18-19) CHECK OUT THE BEARD-MACKIE PATENT IN THE FOLLOWING PIC BEARD-MACKIE SIGHT INDICATOR - American Deputy safety lamp with Beard-Mackie sight indicator, aluminum and brass with brass bonnet, 10 3/4 in. tall to top of hook ring, 3 1/2 in. base dia., marked on base ring AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA and marked on bonnet AM. SAFETY LAMP & M. S. CO. SCRANTON, PA, ex-Henry Pohs collection (The Beard-Mackie sight indicator improved the ability of miners to determine the amount of methane present underground by observing the flame and glow on filaments in the flame cap. Invented by James T. Beard and Mathew D. Mackie, both of Scranton, the patent was awarded on March 10, 1903 for a gas detecting attachment for miners' safety lamps. Based on the fact that as methane levels in the atmosphere are increased, the flame burns hotter. The indicator includes 7 platinum filaments (the top six are looped) attached to a brass frame approximately 3/4 in wide and 3 1/2 in. tall that is situated above the wick tube of the lamp. The bottom straight standard wire is calibrated to glow in the flame cap in open air outside the mine. Each successive wire filament will glow in the mine atmosphere as the methane concentration increases by 1/2 percent until a glowing top filament would indicate a methane concentration of 3 percent. The glass globe is painted black to improve the readability of the indicator. See Steinberg, Mining Artifact Collector #1, pp 18-19) CHECK OUT THE BEARD-MACKIE PATENT IN THE FOLLOWING PIC slides/Beard Mackie Indicator.JPG slides/Beard-Mackie Patent.html# Sun, 21 Aug 2011 15:34:19 -0600 slides/Beard-Mackie Patent.JPG slides/American Safety Lamp & Mine Supply Ad 1895.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP AND MINE SUPPLY CO. AD CA. 1895 AMERICAN SAFETY LAMP AND MINE SUPPLY CO. AD CA. 1895 slides/American Safety Lamp & Mine Supply Ad 1895.JPG slides/ASL&MSCo Clanny.html# Sun, 21 Aug 2011 15:34:19 -0600 ASL&MSCo CLANNY - Brass and steel Clanny style safety lamp, 9 1/2 in. tall to top of hook ring, 3 1/2 in. base dia., marked on edge of brass base SCRANTON PA AMERICAN SAFETY LAMP & MINE SUPPLY Co. SCRANTON, PA noting double stamping of city, with narrow flat wick, wick lifter, and key lock, black bonnet, single iron gauze, no chips or cracks in glass (This lamp looks to be the same as the Clanny pictured in the 1895 American Safety Lamp & Mine Supply Co. ad shown earlier.) ASL&MSCo CLANNY - Brass and steel Clanny style safety lamp, 9 1/2 in. tall to top of hook ring, 3 1/2 in. base dia., marked on edge of brass base SCRANTON PA AMERICAN SAFETY LAMP & MINE SUPPLY Co. SCRANTON, PA noting double stamping of city, with narrow flat wick, wick lifter, and key lock, black bonnet, single iron gauze, no chips or cracks in glass (This lamp looks to be the same as the Clanny pictured in the 1895 American Safety Lamp & Mine Supply Co. ad shown earlier.) slides/ASL&MSCo Clanny.jpg slides/ASL&MSCo Clanny Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 ASL&MSCo CLANNY - Brass and steel Clanny style safety lamp, 9 1/2 in. tall to top of hook ring, 3 1/2 in. base dia., marked on edge of brass base SCRANTON PA AMERICAN SAFETY LAMP & MINE SUPPLY Co. SCRANTON, PA noting double stamping of city, with narrow flat wick, wick lifter, and key lock, black bonnet, single iron gauze, no chips or cracks in glass (This lamp looks to be the same as the Clanny pictured in the 1895 American Safety Lamp & Mine Supply Co. ad shown earlier.) ASL&MSCo CLANNY - Brass and steel Clanny style safety lamp, 9 1/2 in. tall to top of hook ring, 3 1/2 in. base dia., marked on edge of brass base SCRANTON PA AMERICAN SAFETY LAMP & MINE SUPPLY Co. SCRANTON, PA noting double stamping of city, with narrow flat wick, wick lifter, and key lock, black bonnet, single iron gauze, no chips or cracks in glass (This lamp looks to be the same as the Clanny pictured in the 1895 American Safety Lamp & Mine Supply Co. ad shown earlier.) slides/ASL&MSCo Clanny Marking.jpg slides/ASL&MSCo Clanny Open.html# Sun, 21 Aug 2011 15:34:19 -0600 ASL&MSCo CLANNY - Brass and steel Clanny style safety lamp, 9 1/2 in. tall to top of hook ring, 3 1/2 in. base dia., marked on edge of brass base SCRANTON PA AMERICAN SAFETY LAMP & MINE SUPPLY Co. SCRANTON, PA noting double stamping of city, with narrow flat wick, wick lifter, and key lock, black bonnet, single iron gauze, no chips or cracks in glass (This lamp looks to be the same as the Clanny pictured in the 1895 American Safety Lamp & Mine Supply Co. ad shown earlier.) ASL&MSCo CLANNY - Brass and steel Clanny style safety lamp, 9 1/2 in. tall to top of hook ring, 3 1/2 in. base dia., marked on edge of brass base SCRANTON PA AMERICAN SAFETY LAMP & MINE SUPPLY Co. SCRANTON, PA noting double stamping of city, with narrow flat wick, wick lifter, and key lock, black bonnet, single iron gauze, no chips or cracks in glass (This lamp looks to be the same as the Clanny pictured in the 1895 American Safety Lamp & Mine Supply Co. ad shown earlier.) slides/ASL&MSCo Clanny Open.jpg slides/ASL&MSCo Clanny Parts.html# Sun, 21 Aug 2011 15:34:19 -0600 ASL&MSCo CLANNY - Brass and steel Clanny style safety lamp, 9 1/2 in. tall to top of hook ring, 3 1/2 in. base dia., marked on edge of brass base SCRANTON PA AMERICAN SAFETY LAMP & MINE SUPPLY Co. SCRANTON, PA noting double stamping of city, with narrow flat wick, wick lifter, and key lock, black bonnet, single iron gauze, no chips or cracks in glass (This lamp looks to be the same as the Clanny pictured in the 1895 American Safety Lamp & Mine Supply Co. ad shown earlier.) ASL&MSCo CLANNY - Brass and steel Clanny style safety lamp, 9 1/2 in. tall to top of hook ring, 3 1/2 in. base dia., marked on edge of brass base SCRANTON PA AMERICAN SAFETY LAMP & MINE SUPPLY Co. SCRANTON, PA noting double stamping of city, with narrow flat wick, wick lifter, and key lock, black bonnet, single iron gauze, no chips or cracks in glass (This lamp looks to be the same as the Clanny pictured in the 1895 American Safety Lamp & Mine Supply Co. ad shown earlier.) slides/ASL&MSCo Clanny Parts.jpg slides/ASL&MSCo Davy I.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY - Brass safety lamp, Davy Newcastle style lamp, 10 in. tall to top with 3 in. hook, marked on top AM. SAFETY LAMP & M.S. CO., SCRANTON, PA and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA AMERICAN SAFETY LAMP DAVY - Brass safety lamp, Davy Newcastle style lamp, 10 in. tall to top with 3 in. hook, marked on top AM. SAFETY LAMP & M.S. CO., SCRANTON, PA and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA slides/ASL&MSCo Davy I.JPG slides/ASL&MSCo Davy I Open.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY - Brass safety lamp, Davy Newcastle style lamp, 10 in. tall to top with 3 in. hook, marked on top AM. SAFETY LAMP & M.S. CO., SCRANTON, PA and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA AMERICAN SAFETY LAMP DAVY - Brass safety lamp, Davy Newcastle style lamp, 10 in. tall to top with 3 in. hook, marked on top AM. SAFETY LAMP & M.S. CO., SCRANTON, PA and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA slides/ASL&MSCo Davy I Open.jpg slides/ASL&MSCo Davy I Base Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY - Brass safety lamp, Davy Newcastle style lamp, 10 in. tall to top with 3 in. hook, marked on top AM. SAFETY LAMP & M.S. CO., SCRANTON, PA and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA AMERICAN SAFETY LAMP DAVY - Brass safety lamp, Davy Newcastle style lamp, 10 in. tall to top with 3 in. hook, marked on top AM. SAFETY LAMP & M.S. CO., SCRANTON, PA and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA slides/ASL&MSCo Davy I Base Marking.jpg slides/ASL&MSCo Davy II.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY II - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.& M.S.CO. (American Safety Lamp & Mining Supply Co.), marked 104 inside base and 10 over top of screw lock AMERICAN SAFETY LAMP DAVY II - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.& M.S.CO. (American Safety Lamp & Mining Supply Co.), marked 104 inside base and 10 over top of screw lock slides/ASL&MSCo Davy II.JPG slides/ASL&MSCo Davy II Open.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY II - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.& M.S.CO. (American Safety Lamp & Mining Supply Co.), marked 104 inside base and 10 over top of screw lock AMERICAN SAFETY LAMP DAVY II - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.& M.S.CO. (American Safety Lamp & Mining Supply Co.), marked 104 inside base and 10 over top of screw lock slides/ASL&MSCo Davy II Open.jpg slides/ASL&MSCo Davy II Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY II - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.& M.S.CO. (American Safety Lamp & Mining Supply Co.), marked 104 inside base and 10 over top of screw lock AMERICAN SAFETY LAMP DAVY II - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.& M.S.CO. (American Safety Lamp & Mining Supply Co.), marked 104 inside base and 10 over top of screw lock slides/ASL&MSCo Davy II Marking.JPG slides/ASL&MSCo Davy III.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY III - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.&M.S.CO. and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA, cylindrical base AMERICAN SAFETY LAMP DAVY III - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.&M.S.CO. and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA, cylindrical base slides/ASL&MSCo Davy III.jpg slides/ASL&MSCo Davy III Open.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY III - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.&M.S.CO. and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA, cylindrical base AMERICAN SAFETY LAMP DAVY III - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.&M.S.CO. and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA, cylindrical base slides/ASL&MSCo Davy III Open.jpg slides/ASL&MSCo Davy III Top Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY III - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.&M.S.CO. and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA, cylindrical base AMERICAN SAFETY LAMP DAVY III - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.&M.S.CO. and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA, cylindrical base slides/ASL&MSCo Davy III Top Marking.jpg slides/ASL&MSCo Davy III Base Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY III - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.&M.S.CO. and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA, cylindrical base AMERICAN SAFETY LAMP DAVY III - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top A.S.L.&M.S.CO. and around the bottom edge AMERICAN SAFETY LAMP & MINE SUPPLY CO., SCRANTON, PA, cylindrical base slides/ASL&MSCo Davy III Base Marking.jpg slides/ASL&MSCo Davy IV.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY IV - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top AM SAFETY LAMP & M.S.CO. SCRANTON, PA, marked 151 on hood, 124 inside base and 64 over top of screw lock AMERICAN SAFETY LAMP DAVY IV - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top AM SAFETY LAMP & M.S.CO. SCRANTON, PA, marked 151 on hood, 124 inside base and 64 over top of screw lock slides/ASL&MSCo Davy IV.jpg slides/ASL&MSCo Davy IV Open.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP DAVY IV - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top AM SAFETY LAMP & M.S.CO. SCRANTON, PA, marked 151 on hood, 124 inside base and 64 over top of screw lock AMERICAN SAFETY LAMP DAVY IV - Brass safety lamp, Davy Newcastle style lamp, 9 1/2 in. tall to top with 3 in. hook, marked on top AM SAFETY LAMP & M.S.CO. SCRANTON, PA, marked 151 on hood, 124 inside base and 64 over top of screw lock slides/ASL&MSCo Davy IV Open.jpg slides/American Safety Lamp A-H-G.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP ASHWORTH-HEPPLEWHITE-GRAY - Brass Ashworth-Hepplewhite-Gray safety lamp/gas tester, 9 5/8 in. tall to top of cap, 3 1/2 in. base dia., marked AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA., ex-Doc Kraft collection (The English Gray lamp of 1868 was one of the first lamps designed as a gas tester. In 1887 James Ashworth patented two improvements to the Gray lamp to control the air supply to the lamp. These included a rotating shutter on the cap and ferrules sliding over holes in the tubular pillars. This allowed feed air to be taken from the top of the lamp or from the base of the tubes. Other improvements included a gauze cylinder and a conical glass to throw light upwards to make roof inspections easier. This new improved Gray lamp would be known as the Ashworth Hepplewhite Gray (AHG) lamp. The AHG would become one of the best gas testers, being able to detect 2.5% firedamp. In use, hollow tubes direct feed air to enter the lamp through gauzed openings below the flame. A thin layer of gas against the mine roof can be detected without tilting the lamp by opening the cap shutter on top allowing air to be sampled and closing the tube ferrules on the bottom. In more normal operation, the cap shutter is closed and the tube ferrules are opened allowing air to be accessed to the flame. The lamp was in use from 1889 to 1920. The AHG lamp saw use in the United States as well and the lamp shown here was manufactured by the American Safety Lamp and Mine Supply Company of Scranton, PA. The US made lamps are identical in most details to the English AHG lamps. See Ballard and Van Fleet, Eureka #5, pp 20-24 and David Barrie, The Wand of Science) AMERICAN SAFETY LAMP ASHWORTH-HEPPLEWHITE-GRAY - Brass Ashworth-Hepplewhite-Gray safety lamp/gas tester, 9 5/8 in. tall to top of cap, 3 1/2 in. base dia., marked AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA., ex-Doc Kraft collection (The English Gray lamp of 1868 was one of the first lamps designed as a gas tester. In 1887 James Ashworth patented two improvements to the Gray lamp to control the air supply to the lamp. These included a rotating shutter on the cap and ferrules sliding over holes in the tubular pillars. This allowed feed air to be taken from the top of the lamp or from the base of the tubes. Other improvements included a gauze cylinder and a conical glass to throw light upwards to make roof inspections easier. This new improved Gray lamp would be known as the Ashworth Hepplewhite Gray (AHG) lamp. The AHG would become one of the best gas testers, being able to detect 2.5% firedamp. In use, hollow tubes direct feed air to enter the lamp through gauzed openings below the flame. A thin layer of gas against the mine roof can be detected without tilting the lamp by opening the cap shutter on top allowing air to be sampled and closing the tube ferrules on the bottom. In more normal operation, the cap shutter is closed and the tube ferrules are opened allowing air to be accessed to the flame. The lamp was in use from 1889 to 1920. The AHG lamp saw use in the United States as well and the lamp shown here was manufactured by the American Safety Lamp and Mine Supply Company of Scranton, PA. The US made lamps are identical in most details to the English AHG lamps. See Ballard and Van Fleet, Eureka #5, pp 20-24 and David Barrie, The Wand of Science) slides/American Safety Lamp A-H-G.jpg slides/American Safety Lamp A-H-G Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP ASHWORTH-HEPPLEWHITE-GRAY - Brass Ashworth-Hepplewhite-Gray safety lamp/gas tester, 9 5/8 in. tall to top of cap, 3 1/2 in. base dia., marked AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA., ex-Doc Kraft collection (The English Gray lamp of 1868 was one of the first lamps designed as a gas tester. In 1887 James Ashworth patented two improvements to the Gray lamp to control the air supply to the lamp. These included a rotating shutter on the cap and ferrules sliding over holes in the tubular pillars. This allowed feed air to be taken from the top of the lamp or from the base of the tubes. Other improvements included a gauze cylinder and a conical glass to throw light upwards to make roof inspections easier. This new improved Gray lamp would be known as the Ashworth Hepplewhite Gray (AHG) lamp. The AHG would become one of the best gas testers, being able to detect 2.5% firedamp. In use, hollow tubes direct feed air to enter the lamp through gauzed openings below the flame. A thin layer of gas against the mine roof can be detected without tilting the lamp by opening the cap shutter on top allowing air to be sampled and closing the tube ferrules on the bottom. In more normal operation, the cap shutter is closed and the tube ferrules are opened allowing air to be accessed to the flame. The lamp was in use from 1889 to 1920. The AHG lamp saw use in the United States as well and the lamp shown here was manufactured by the American Safety Lamp and Mine Supply Company of Scranton, PA. The US made lamps are identical in most details to the English AHG lamps. See Ballard and Van Fleet, Eureka #5, pp 20-24 and David Barrie, The Wand of Science) AMERICAN SAFETY LAMP ASHWORTH-HEPPLEWHITE-GRAY - Brass Ashworth-Hepplewhite-Gray safety lamp/gas tester, 9 5/8 in. tall to top of cap, 3 1/2 in. base dia., marked AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA., ex-Doc Kraft collection (The English Gray lamp of 1868 was one of the first lamps designed as a gas tester. In 1887 James Ashworth patented two improvements to the Gray lamp to control the air supply to the lamp. These included a rotating shutter on the cap and ferrules sliding over holes in the tubular pillars. This allowed feed air to be taken from the top of the lamp or from the base of the tubes. Other improvements included a gauze cylinder and a conical glass to throw light upwards to make roof inspections easier. This new improved Gray lamp would be known as the Ashworth Hepplewhite Gray (AHG) lamp. The AHG would become one of the best gas testers, being able to detect 2.5% firedamp. In use, hollow tubes direct feed air to enter the lamp through gauzed openings below the flame. A thin layer of gas against the mine roof can be detected without tilting the lamp by opening the cap shutter on top allowing air to be sampled and closing the tube ferrules on the bottom. In more normal operation, the cap shutter is closed and the tube ferrules are opened allowing air to be accessed to the flame. The lamp was in use from 1889 to 1920. The AHG lamp saw use in the United States as well and the lamp shown here was manufactured by the American Safety Lamp and Mine Supply Company of Scranton, PA. The US made lamps are identical in most details to the English AHG lamps. See Ballard and Van Fleet, Eureka #5, pp 20-24 and David Barrie, The Wand of Science) slides/American Safety Lamp A-H-G Marking.jpg slides/American Safety Lamp A-H-G Open.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP ASHWORTH-HEPPLEWHITE-GRAY - Brass Ashworth-Hepplewhite-Gray safety lamp/gas tester, 9 5/8 in. tall to top of cap, 3 1/2 in. base dia., marked AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA., ex-Doc Kraft collection (The English Gray lamp of 1868 was one of the first lamps designed as a gas tester. In 1887 James Ashworth patented two improvements to the Gray lamp to control the air supply to the lamp. These included a rotating shutter on the cap and ferrules sliding over holes in the tubular pillars. This allowed feed air to be taken from the top of the lamp or from the base of the tubes. Other improvements included a gauze cylinder and a conical glass to throw light upwards to make roof inspections easier. This new improved Gray lamp would be known as the Ashworth Hepplewhite Gray (AHG) lamp. The AHG would become one of the best gas testers, being able to detect 2.5% firedamp. In use, hollow tubes direct feed air to enter the lamp through gauzed openings below the flame. A thin layer of gas against the mine roof can be detected without tilting the lamp by opening the cap shutter on top allowing air to be sampled and closing the tube ferrules on the bottom. In more normal operation, the cap shutter is closed and the tube ferrules are opened allowing air to be accessed to the flame. The lamp was in use from 1889 to 1920. The AHG lamp saw use in the United States as well and the lamp shown here was manufactured by the American Safety Lamp and Mine Supply Company of Scranton, PA. The US made lamps are identical in most details to the English AHG lamps. See Ballard and Van Fleet, Eureka #5, pp 20-24 and David Barrie, The Wand of Science) AMERICAN SAFETY LAMP ASHWORTH-HEPPLEWHITE-GRAY - Brass Ashworth-Hepplewhite-Gray safety lamp/gas tester, 9 5/8 in. tall to top of cap, 3 1/2 in. base dia., marked AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA., ex-Doc Kraft collection (The English Gray lamp of 1868 was one of the first lamps designed as a gas tester. In 1887 James Ashworth patented two improvements to the Gray lamp to control the air supply to the lamp. These included a rotating shutter on the cap and ferrules sliding over holes in the tubular pillars. This allowed feed air to be taken from the top of the lamp or from the base of the tubes. Other improvements included a gauze cylinder and a conical glass to throw light upwards to make roof inspections easier. This new improved Gray lamp would be known as the Ashworth Hepplewhite Gray (AHG) lamp. The AHG would become one of the best gas testers, being able to detect 2.5% firedamp. In use, hollow tubes direct feed air to enter the lamp through gauzed openings below the flame. A thin layer of gas against the mine roof can be detected without tilting the lamp by opening the cap shutter on top allowing air to be sampled and closing the tube ferrules on the bottom. In more normal operation, the cap shutter is closed and the tube ferrules are opened allowing air to be accessed to the flame. The lamp was in use from 1889 to 1920. The AHG lamp saw use in the United States as well and the lamp shown here was manufactured by the American Safety Lamp and Mine Supply Company of Scranton, PA. The US made lamps are identical in most details to the English AHG lamps. See Ballard and Van Fleet, Eureka #5, pp 20-24 and David Barrie, The Wand of Science) slides/American Safety Lamp A-H-G Open.jpg slides/American Safety Lamp A-H-G Tubes Closed.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP ASHWORTH-HEPPLEWHITE-GRAY (TUBE FERRULES CLOSED) - Brass Ashworth-Hepplewhite-Gray safety lamp/gas tester, 9 5/8 in. tall to top of cap, 3 1/2 in. base dia., marked AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA., ex-Doc Kraft collection (The English Gray lamp of 1868 was one of the first lamps designed as a gas tester. In 1887 James Ashworth patented two improvements to the Gray lamp to control the air supply to the lamp. These included a rotating shutter on the cap and ferrules sliding over holes in the tubular pillars. This allowed feed air to be taken from the top of the lamp or from the base of the tubes. Other improvements included a gauze cylinder and a conical glass to throw light upwards to make roof inspections easier. This new improved Gray lamp would be known as the Ashworth Hepplewhite Gray (AHG) lamp. The AHG would become one of the best gas testers, being able to detect 2.5% firedamp. In use, hollow tubes direct feed air to enter the lamp through gauzed openings below the flame. A thin layer of gas against the mine roof can be detected without tilting the lamp by opening the cap shutter on top allowing air to be sampled and closing the tube ferrules on the bottom. In more normal operation, the cap shutter is closed and the tube ferrules are opened allowing air to be accessed to the flame. The lamp was in use from 1889 to 1920. The AHG lamp saw use in the United States as well and the lamp shown here was manufactured by the American Safety Lamp and Mine Supply Company of Scranton, PA. The US made lamps are identical in most details to the English AHG lamps. See Ballard and Van Fleet, Eureka #5, pp 20-24 and David Barrie, The Wand of Science) AMERICAN SAFETY LAMP ASHWORTH-HEPPLEWHITE-GRAY (TUBE FERRULES CLOSED) - Brass Ashworth-Hepplewhite-Gray safety lamp/gas tester, 9 5/8 in. tall to top of cap, 3 1/2 in. base dia., marked AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA., ex-Doc Kraft collection (The English Gray lamp of 1868 was one of the first lamps designed as a gas tester. In 1887 James Ashworth patented two improvements to the Gray lamp to control the air supply to the lamp. These included a rotating shutter on the cap and ferrules sliding over holes in the tubular pillars. This allowed feed air to be taken from the top of the lamp or from the base of the tubes. Other improvements included a gauze cylinder and a conical glass to throw light upwards to make roof inspections easier. This new improved Gray lamp would be known as the Ashworth Hepplewhite Gray (AHG) lamp. The AHG would become one of the best gas testers, being able to detect 2.5% firedamp. In use, hollow tubes direct feed air to enter the lamp through gauzed openings below the flame. A thin layer of gas against the mine roof can be detected without tilting the lamp by opening the cap shutter on top allowing air to be sampled and closing the tube ferrules on the bottom. In more normal operation, the cap shutter is closed and the tube ferrules are opened allowing air to be accessed to the flame. The lamp was in use from 1889 to 1920. The AHG lamp saw use in the United States as well and the lamp shown here was manufactured by the American Safety Lamp and Mine Supply Company of Scranton, PA. The US made lamps are identical in most details to the English AHG lamps. See Ballard and Van Fleet, Eureka #5, pp 20-24 and David Barrie, The Wand of Science) slides/American Safety Lamp A-H-G Tubes Closed.jpg slides/American Safety Lamp A-H-G Tubes Open.html# Sun, 21 Aug 2011 15:34:19 -0600 AMERICAN SAFETY LAMP ASHWORTH-HEPPLEWHITE-GRAY (TUBE FERRULES OPEN) - Brass Ashworth-Hepplewhite-Gray safety lamp/gas tester, 9 5/8 in. tall to top of cap, 3 1/2 in. base dia., marked AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA., ex-Doc Kraft collection (The English Gray lamp of 1868 was one of the first lamps designed as a gas tester. In 1887 James Ashworth patented two improvements to the Gray lamp to control the air supply to the lamp. These included a rotating shutter on the cap and ferrules sliding over holes in the tubular pillars. This allowed feed air to be taken from the top of the lamp or from the base of the tubes. Other improvements included a gauze cylinder and a conical glass to throw light upwards to make roof inspections easier. This new improved Gray lamp would be known as the Ashworth Hepplewhite Gray (AHG) lamp. The AHG would become one of the best gas testers, being able to detect 2.5% firedamp. In use, hollow tubes direct feed air to enter the lamp through gauzed openings below the flame. A thin layer of gas against the mine roof can be detected without tilting the lamp by opening the cap shutter on top allowing air to be sampled and closing the tube ferrules on the bottom. In more normal operation, the cap shutter is closed and the tube ferrules are opened allowing air to be accessed to the flame. The lamp was in use from 1889 to 1920. The AHG lamp saw use in the United States as well and the lamp shown here was manufactured by the American Safety Lamp and Mine Supply Company of Scranton, PA. The US made lamps are identical in most details to the English AHG lamps. See Ballard and Van Fleet, Eureka #5, pp 20-24 and David Barrie, The Wand of Science) AMERICAN SAFETY LAMP ASHWORTH-HEPPLEWHITE-GRAY (TUBE FERRULES OPEN) - Brass Ashworth-Hepplewhite-Gray safety lamp/gas tester, 9 5/8 in. tall to top of cap, 3 1/2 in. base dia., marked AMERICAN SAFETY LAMP & MINE SUPPLY CO. SCRANTON, PA., ex-Doc Kraft collection (The English Gray lamp of 1868 was one of the first lamps designed as a gas tester. In 1887 James Ashworth patented two improvements to the Gray lamp to control the air supply to the lamp. These included a rotating shutter on the cap and ferrules sliding over holes in the tubular pillars. This allowed feed air to be taken from the top of the lamp or from the base of the tubes. Other improvements included a gauze cylinder and a conical glass to throw light upwards to make roof inspections easier. This new improved Gray lamp would be known as the Ashworth Hepplewhite Gray (AHG) lamp. The AHG would become one of the best gas testers, being able to detect 2.5% firedamp. In use, hollow tubes direct feed air to enter the lamp through gauzed openings below the flame. A thin layer of gas against the mine roof can be detected without tilting the lamp by opening the cap shutter on top allowing air to be sampled and closing the tube ferrules on the bottom. In more normal operation, the cap shutter is closed and the tube ferrules are opened allowing air to be accessed to the flame. The lamp was in use from 1889 to 1920. The AHG lamp saw use in the United States as well and the lamp shown here was manufactured by the American Safety Lamp and Mine Supply Company of Scranton, PA. The US made lamps are identical in most details to the English AHG lamps. See Ballard and Van Fleet, Eureka #5, pp 20-24 and David Barrie, The Wand of Science) slides/American Safety Lamp A-H-G Tubes Open.jpg slides/Bickerton.html# Sun, 21 Aug 2011 15:34:19 -0600 T. B. BICKERTON CLANNY - Brass Clanny style safety lamp, 8 7/8 in. tall to top of hook ring, 2 3/4 in. base dia., marked on hood T. B. BICKERTON & CO. NO.12 S. 4TH ST. MINERS SUPPLIES PHILADELPHIA, marked 6 on base ring and 60 on opposite side of hood, complete with wick lifter, the light stamping on this lamp shows only the N of the address line (In 1871 at the age of 33, Thomas Benjamin Bickerton started a business with his cousin Joseph Errickson at 12 S. 4th St. in Philadelphia, PA selling railroad supplies. T. B. Bickerton & Co. expanded the business to include machinists and miners’ supplies, operating at this address until 1889. The company moved several times until it settled at 23 N. 6th St. in 1900. The 1900 Philadelphia City Directory lists the company as selling railroad supplies but no mention is made of miners’ supplies. Errickson left the company in 1910 and died shortly thereafter in 1912. The Philadelphia City Directory did not list the company after 1915. T. B. Bickerton died in 1928. Davy and Clanny style safety lamps are known with the Bickerton stamp but were undoubtedly made by an established lamp manufacturer and custom stamped for Bickerton. The lamp shown here is the much harder to find shorter Clanny syle that is 1 1/8 in. shorter than the Clanny style Bickerton lamp featured in Eureka #4 pp 5-6 by Roger Mitchell) T. B. BICKERTON CLANNY - Brass Clanny style safety lamp, 8 7/8 in. tall to top of hook ring, 2 3/4 in. base dia., marked on hood T. B. BICKERTON & CO. NO.12 S. 4TH ST. MINERS SUPPLIES PHILADELPHIA, marked 6 on base ring and 60 on opposite side of hood, complete with wick lifter, the light stamping on this lamp shows only the N of the address line (In 1871 at the age of 33, Thomas Benjamin Bickerton started a business with his cousin Joseph Errickson at 12 S. 4th St. in Philadelphia, PA selling railroad supplies. T. B. Bickerton & Co. expanded the business to include machinists and miners’ supplies, operating at this address until 1889. The company moved several times until it settled at 23 N. 6th St. in 1900. The 1900 Philadelphia City Directory lists the company as selling railroad supplies but no mention is made of miners’ supplies. Errickson left the company in 1910 and died shortly thereafter in 1912. The Philadelphia City Directory did not list the company after 1915. T. B. Bickerton died in 1928. Davy and Clanny style safety lamps are known with the Bickerton stamp but were undoubtedly made by an established lamp manufacturer and custom stamped for Bickerton. The lamp shown here is the much harder to find shorter Clanny syle that is 1 1/8 in. shorter than the Clanny style Bickerton lamp featured in Eureka #4 pp 5-6 by Roger Mitchell) slides/Bickerton.JPG slides/Bickerton Open.html# Sun, 21 Aug 2011 15:34:19 -0600 T. B. BICKERTON CLANNY - Brass Clanny style safety lamp, 8 7/8 in. tall to top of hook ring, 2 3/4 in. base dia., marked on hood T. B. BICKERTON & CO. NO.12 S. 4TH ST. MINERS SUPPLIES PHILADELPHIA, marked 6 on base ring and 60 on opposite side of hood, complete with wick lifter, the light stamping on this lamp shows only the N of the address line (In 1871 at the age of 33, Thomas Benjamin Bickerton started a business with his cousin Joseph Errickson at 12 S. 4th St. in Philadelphia, PA selling railroad supplies. T. B. Bickerton & Co. expanded the business to include machinists and miners’ supplies, operating at this address until 1889. The company moved several times until it settled at 23 N. 6th St. in 1900. The 1900 Philadelphia City Directory lists the company as selling railroad supplies but no mention is made of miners’ supplies. Errickson left the company in 1910 and died shortly thereafter in 1912. The Philadelphia City Directory did not list the company after 1915. T. B. Bickerton died in 1928. Davy and Clanny style safety lamps are known with the Bickerton stamp but were undoubtedly made by an established lamp manufacturer and custom stamped for Bickerton. The lamp shown here is the much harder to find shorter Clanny syle that is 1 1/8 in. shorter than the Clanny style Bickerton lamp featured in Eureka #4 pp 5-6 by Roger Mitchell) T. B. BICKERTON CLANNY - Brass Clanny style safety lamp, 8 7/8 in. tall to top of hook ring, 2 3/4 in. base dia., marked on hood T. B. BICKERTON & CO. NO.12 S. 4TH ST. MINERS SUPPLIES PHILADELPHIA, marked 6 on base ring and 60 on opposite side of hood, complete with wick lifter, the light stamping on this lamp shows only the N of the address line (In 1871 at the age of 33, Thomas Benjamin Bickerton started a business with his cousin Joseph Errickson at 12 S. 4th St. in Philadelphia, PA selling railroad supplies. T. B. Bickerton & Co. expanded the business to include machinists and miners’ supplies, operating at this address until 1889. The company moved several times until it settled at 23 N. 6th St. in 1900. The 1900 Philadelphia City Directory lists the company as selling railroad supplies but no mention is made of miners’ supplies. Errickson left the company in 1910 and died shortly thereafter in 1912. The Philadelphia City Directory did not list the company after 1915. T. B. Bickerton died in 1928. Davy and Clanny style safety lamps are known with the Bickerton stamp but were undoubtedly made by an established lamp manufacturer and custom stamped for Bickerton. The lamp shown here is the much harder to find shorter Clanny syle that is 1 1/8 in. shorter than the Clanny style Bickerton lamp featured in Eureka #4 pp 5-6 by Roger Mitchell) slides/Bickerton Open.jpg slides/Davis & Son Ad 1901 Mines and Minerals.html# Sun, 21 Aug 2011 15:34:19 -0600 JOHN DAVIS & SON - Ad from 1901 Mines and Minerals Magazine showing Fire Tryer lamp JOHN DAVIS & SON - Ad from 1901 Mines and Minerals Magazine showing Fire Tryer lamp slides/Davis & Son Ad 1901 Mines and Minerals.JPG slides/Davis.html# Sun, 21 Aug 2011 15:34:19 -0600 J DAVIS & SON CLANNY - Clanny style safety lamp, bottom all brass with iron gauze and top, marked on base J DAVIS & SON LTD and BALTIMORE MD, 9 in. tall to top of hook ring with 3 1/2 in. base dia., marked with number 26 above key lock on base, 5 brass pillars on base arranged to provide clear viewing area of flame above key lock for use as lighting target for underground surveying, complete with flat wick, wick lifter and hook (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) J DAVIS & SON CLANNY - Clanny style safety lamp, bottom all brass with iron gauze and top, marked on base J DAVIS & SON LTD and BALTIMORE MD, 9 in. tall to top of hook ring with 3 1/2 in. base dia., marked with number 26 above key lock on base, 5 brass pillars on base arranged to provide clear viewing area of flame above key lock for use as lighting target for underground surveying, complete with flat wick, wick lifter and hook (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) slides/Davis.JPG slides/Davis Open.html# Sun, 21 Aug 2011 15:34:19 -0600 J DAVIS & SON CLANNY - Clanny style safety lamp, bottom all brass with iron gauze and top, marked on base J DAVIS & SON LTD and BALTIMORE MD, 9 in. tall to top of hook ring with 3 1/2 in. base dia., marked with number 26 above key lock on base, 5 brass pillars on base arranged to provide clear viewing area of flame above key lock for use as lighting target for underground surveying, complete with flat wick, wick lifter and hook (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) J DAVIS & SON CLANNY - Clanny style safety lamp, bottom all brass with iron gauze and top, marked on base J DAVIS & SON LTD and BALTIMORE MD, 9 in. tall to top of hook ring with 3 1/2 in. base dia., marked with number 26 above key lock on base, 5 brass pillars on base arranged to provide clear viewing area of flame above key lock for use as lighting target for underground surveying, complete with flat wick, wick lifter and hook (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) slides/Davis Open.jpg slides/John Davis & Son Ad 1907 Coal Field Directory.html# Sun, 21 Aug 2011 15:34:19 -0600 JOHN DAVIS & SON AD 1907 COAL FIELD DIRECTORY JOHN DAVIS & SON AD 1907 COAL FIELD DIRECTORY slides/John Davis & Son Ad 1907 Coal Field Directory.jpg slides/Davis Fire Tryer Ad 1906 Pittsburgh Gage and Supply Catalogue.html# Sun, 21 Aug 2011 15:34:19 -0600 DAVIS FIRE TRYER LAMP AD - Davis Fire Tryer lamp offered in 1906 Pittsburgh Gage & Supply Co. catalogue DAVIS FIRE TRYER LAMP AD - Davis Fire Tryer lamp offered in 1906 Pittsburgh Gage & Supply Co. catalogue slides/Davis Fire Tryer Ad 1906 Pittsburgh Gage and Supply Catalogue.JPG slides/Davis Aluminum Front.html# Sun, 21 Aug 2011 15:34:19 -0600 J DAVIS & SON FIRE TRYER LAMP - Clanny style safety lamp with bonnet, aluminum and brass, marked on base J DAVIS & SON LTD and BALTIMORE MD, 10 in. tall to top of hook ring with 3 3/8 in. base dia., 5 brass pillars on base and one removable spring-loaded brass pillar arranged to provide clear viewing area of flame, marked with number 13 above key lock on base, complete with flat wick, wick lifter, hook, key lock and frosted section of glass to aid viewing (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) J DAVIS & SON FIRE TRYER LAMP - Clanny style safety lamp with bonnet, aluminum and brass, marked on base J DAVIS & SON LTD and BALTIMORE MD, 10 in. tall to top of hook ring with 3 3/8 in. base dia., 5 brass pillars on base and one removable spring-loaded brass pillar arranged to provide clear viewing area of flame, marked with number 13 above key lock on base, complete with flat wick, wick lifter, hook, key lock and frosted section of glass to aid viewing (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) slides/Davis Aluminum Front.JPG slides/Davis Aluminum Back.html# Sun, 21 Aug 2011 15:34:19 -0600 J DAVIS & SON FIRE TRYER LAMP - Clanny style safety lamp with bonnet, aluminum and brass, marked on base J DAVIS & SON LTD and BALTIMORE MD, 10 in. tall to top of hook ring with 3 3/8 in. base dia., 5 brass pillars on base and one removable spring-loaded brass pillar arranged to provide clear viewing area of flame, marked with number 13 above key lock on base, complete with flat wick, wick lifter, hook, key lock and frosted section of glass to aid viewing (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) J DAVIS & SON FIRE TRYER LAMP - Clanny style safety lamp with bonnet, aluminum and brass, marked on base J DAVIS & SON LTD and BALTIMORE MD, 10 in. tall to top of hook ring with 3 3/8 in. base dia., 5 brass pillars on base and one removable spring-loaded brass pillar arranged to provide clear viewing area of flame, marked with number 13 above key lock on base, complete with flat wick, wick lifter, hook, key lock and frosted section of glass to aid viewing (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) slides/Davis Aluminum Back.JPG slides/Davis Aluminum Base.html# Sun, 21 Aug 2011 15:34:19 -0600 J DAVIS & SON FIRE TRYER LAMP - Clanny style safety lamp with bonnet, aluminum and brass, marked on base J DAVIS & SON LTD and BALTIMORE MD, 10 in. tall to top of hook ring with 3 3/8 in. base dia., 5 brass pillars on base and one removable spring-loaded brass pillar arranged to provide clear viewing area of flame, marked with number 13 above key lock on base, complete with flat wick, wick lifter, hook, key lock and frosted section of glass to aid viewing (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) J DAVIS & SON FIRE TRYER LAMP - Clanny style safety lamp with bonnet, aluminum and brass, marked on base J DAVIS & SON LTD and BALTIMORE MD, 10 in. tall to top of hook ring with 3 3/8 in. base dia., 5 brass pillars on base and one removable spring-loaded brass pillar arranged to provide clear viewing area of flame, marked with number 13 above key lock on base, complete with flat wick, wick lifter, hook, key lock and frosted section of glass to aid viewing (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) slides/Davis Aluminum Base.JPG slides/Davis Aluminum Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 J DAVIS & SON FIRE TRYER LAMP - Clanny style safety lamp with bonnet, aluminum and brass, marked on base J DAVIS & SON LTD and BALTIMORE MD, 10 in. tall to top of hook ring with 3 3/8 in. base dia., 5 brass pillars on base and one removable spring-loaded brass pillar arranged to provide clear viewing area of flame, marked with number 13 above key lock on base, complete with flat wick, wick lifter, hook, key lock and frosted section of glass to aid viewing (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) J DAVIS & SON FIRE TRYER LAMP - Clanny style safety lamp with bonnet, aluminum and brass, marked on base J DAVIS & SON LTD and BALTIMORE MD, 10 in. tall to top of hook ring with 3 3/8 in. base dia., 5 brass pillars on base and one removable spring-loaded brass pillar arranged to provide clear viewing area of flame, marked with number 13 above key lock on base, complete with flat wick, wick lifter, hook, key lock and frosted section of glass to aid viewing (John Davis was born in 1810 in the village of Thame, Oxfordshire, England. John was the nephew of Gabriel Davis who in 1779 had established the family business of Davis Derby in Leeds as a manufacturer of optical, surveying and mathematical instruments. After completing his apprenticeship, John joined his uncle’s family business and by 1830 had established a shop in Derby at a less than auspicious sounding location named Rotten Row where he was selling the company’s products. By 1833, it was clear that John had broken away from the family business and had established his own business listing himself as an optician and manufacturer of optical and philosophical instruments in an early October 1831 ad in the local Derby newspaper. His business flourished and eventually he fathered 10 children including seven sons. He was now manufacturing a variety of surveying equipment, some very similar in design to the products of Gabriel’s business in Leeds. Around 1840 John Davis began manufacturing mining equipment such as safety lamps based on the designs invented by Sir Humphrey Davy in 1815. Production of miners’ lamps continued for more than 100 years, reaching 10,000 per year by the turn of the century. In 1845 Davis & Son announced the first production of Benjamin Biram’s invention which could measure the amount of air entering a mine which he called an anemometer. John Davis died in 1873 at the age of 63. His son Henry took over the business keeping its name John Davis & Son, expanding the product line and eventually moving its workshop facility in 1875 to All Saints Works, Amen Alley in Derby. Miners’ safety lamps manufactured and listed in a Davis catalog from 1887 include a Clanny, Bonneted Clanny with Stoke’s Shut-off, Mueseler and Marsaut (a scan of this 1877 catalog is included in my catalog section). The company was very active in overseas markets with agents in Australia, Canada, China, Japan and South Africa. In 1900 Henry’s brother, Herbert, was given a 4-year contract to sell the company’s products in the US through a branch office in Baltimore, MD. The Clanny lamp shown here was a product of that US expansion. The US branch office was so successful, that in 1912 Herbert Davis resigned and formed his own company Davis Instruments of Baltimore that continued to manufacture many Davis Derby products including anemometers which are still manufactured by that company today. Herbert Davis was succeeded by his son Alfred who died in the late 1960s. Upon his death, the company was sold to its present owners and is still a world leader in instrumentation technology. See David J. Hind, Davis Derby-A History of Engineering, Mining History: The Bulletin of the Peak Mines Historical Society, Vol. 14, No. 2, Winter 1999) slides/Davis Aluminum Marking.JPG slides/Davis Deputy Ad.html# Sun, 21 Aug 2011 15:34:19 -0600 DAVIS FIRE TRYER LAMP AD - The mine official underground who was to make sure the workings were fit for the men was sometimes called the deputy and sometimes the fire tryer. There were usually two or three fire tryers assigned per mine and perhaps more if it was a large mine with extensive workings. The Davis Deputy or Fire-Tryers lamp featured in this Leaflet No. 294A from John Davis & Son, Derby, England (compliments of Tony Moon) circa late 1910’s was approved by the British Mines Department as a testing lamp for detecting the presence of methane. It was described in the Safety Lamps Order of August 26, 1913, as the No. 3 Lamp, the Davis-Boss for Officials. The lamp is unique in that it is fitted with a special brass shut-off air ring collar at the base of the bonnet that could be actuated or released when methane was found by using a spring-loaded pillar located on the back side of the lamp. To detect methane gas, the fire tryer would shut off the fresh air feed by turning the collar counterclockwise. The feed would then be solely through the upper intake holes in the bonnet. If gas was found, the fire tryer would draw down the spring locking pillar allowing the collar to snap back and recover the light. The lamp featured in this ad was equipped with a lead plug lock rather than the key lock shown in my pics. Otherwise, the lamps are identical. The lamp shown in the previous pics was supplied by J Davis & Son, Baltimore, MD but was likely manufactured by Davis Derby. Its use here in the U.S. from 1913 on was probably quite limited by the actions of the U.S. Bureau of Mines. The U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. Only lamps approved by the Bureau were permitted for use underground. Of the lamps approved, all were equipped with magnetic locks. The Davis Fire-Tryer lamp was never approved by the Bureau, seriously limiting the market for this lamp in the U.S. DAVIS FIRE TRYER LAMP AD - The mine official underground who was to make sure the workings were fit for the men was sometimes called the deputy and sometimes the fire tryer. There were usually two or three fire tryers assigned per mine and perhaps more if it was a large mine with extensive workings. The Davis Deputy or Fire-Tryers lamp featured in this Leaflet No. 294A from John Davis & Son, Derby, England (compliments of Tony Moon) circa late 1910’s was approved by the British Mines Department as a testing lamp for detecting the presence of methane. It was described in the Safety Lamps Order of August 26, 1913, as the No. 3 Lamp, the Davis-Boss for Officials. The lamp is unique in that it is fitted with a special brass shut-off air ring collar at the base of the bonnet that could be actuated or released when methane was found by using a spring-loaded pillar located on the back side of the lamp. To detect methane gas, the fire tryer would shut off the fresh air feed by turning the collar counterclockwise. The feed would then be solely through the upper intake holes in the bonnet. If gas was found, the fire tryer would draw down the spring locking pillar allowing the collar to snap back and recover the light. The lamp featured in this ad was equipped with a lead plug lock rather than the key lock shown in my pics. Otherwise, the lamps are identical. The lamp shown in the previous pics was supplied by J Davis & Son, Baltimore, MD but was likely manufactured by Davis Derby. Its use here in the U.S. from 1913 on was probably quite limited by the actions of the U.S. Bureau of Mines. The U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. Only lamps approved by the Bureau were permitted for use underground. Of the lamps approved, all were equipped with magnetic locks. The Davis Fire-Tryer lamp was never approved by the Bureau, seriously limiting the market for this lamp in the U.S. slides/Davis Deputy Ad.JPG slides/Everhart Brass Works Ad 1907 Coal Field Directory.html# Sun, 21 Aug 2011 15:34:19 -0600 EVERHART BRASS WORKS AD 1907 COAL FIELD DIRECTORY EVERHART BRASS WORKS AD 1907 COAL FIELD DIRECTORY slides/Everhart Brass Works Ad 1907 Coal Field Directory.jpg slides/Everhart.html# Sun, 21 Aug 2011 15:34:19 -0600 EVERHART BRASS WORKS DAVY - Brass Davy style safety lamp, 9 1/4 in. tall, 3 3/8 in. base dia., marked on hood EVERHART BRASS WORKS SCRANTON, PA, marked 17 on screw lock and 5 on inside of base, complete with flat wick and wick lifter [The Scranton Brass and File Works was founded in 1853 by John McLaren. The company was a manufacturer of brass work for water, gas and steam as well as Carr and Wilson’s patent cut files. Originally located in Pittston, PA, the company was moved to Scranton in 1865. In 1871, James M. Everhart purchased a half-interest in the firm and the company continued as McLaren and Everhart. McLaren died in 1873 and Everhart became the sole proprietor of the Scranton Brass Works. Dr. Isaiah Fawkes Everhart, James’s brother, became an active investor in the company and served for a time as president of the company. An ad in the 1891Colliery Engineer Pocket-book of Principles Rules, Formulæ, and Tables shown in the next pic notes that the Scranton Brass Works and James Everhart was a manufacturer of all types of safety lamps picturing both a Davy and bullseye surveying lamp. James Everhart died in May 1897 at the age of 69. After his death, the company’s name was changed to the Everhart Brass Works. Dr. Isaiah Everhart continued his interests in the company and in 1907, he gifted a museum to the city of Scranton that opened in 1908 as the Everhart Museum of Natural History, Science and Art. The museum today is the largest general museum in Northeastern Pennsylvania. He died in May 1911. The Everhart Brass Works continued in business until the early 1940s.] EVERHART BRASS WORKS DAVY - Brass Davy style safety lamp, 9 1/4 in. tall, 3 3/8 in. base dia., marked on hood EVERHART BRASS WORKS SCRANTON, PA, marked 17 on screw lock and 5 on inside of base, complete with flat wick and wick lifter [The Scranton Brass and File Works was founded in 1853 by John McLaren. The company was a manufacturer of brass work for water, gas and steam as well as Carr and Wilson’s patent cut files. Originally located in Pittston, PA, the company was moved to Scranton in 1865. In 1871, James M. Everhart purchased a half-interest in the firm and the company continued as McLaren and Everhart. McLaren died in 1873 and Everhart became the sole proprietor of the Scranton Brass Works. Dr. Isaiah Fawkes Everhart, James’s brother, became an active investor in the company and served for a time as president of the company. An ad in the 1891Colliery Engineer Pocket-book of Principles Rules, Formulæ, and Tables shown in the next pic notes that the Scranton Brass Works and James Everhart was a manufacturer of all types of safety lamps picturing both a Davy and bullseye surveying lamp. James Everhart died in May 1897 at the age of 69. After his death, the company’s name was changed to the Everhart Brass Works. Dr. Isaiah Everhart continued his interests in the company and in 1907, he gifted a museum to the city of Scranton that opened in 1908 as the Everhart Museum of Natural History, Science and Art. The museum today is the largest general museum in Northeastern Pennsylvania. He died in May 1911. The Everhart Brass Works continued in business until the early 1940s.] slides/Everhart.JPG slides/Everhart Open.html# Sun, 21 Aug 2011 15:34:19 -0600 EVERHART BRASS WORKS DAVY - Brass Davy style safety lamp, 9 1/4 in. tall, 3 3/8 in. base dia., marked on hood EVERHART BRASS WORKS SCRANTON, PA, marked 17 on screw lock and 5 on inside of base, complete with flat wick and wick lifter [The Scranton Brass and File Works was founded in 1853 by John McLaren. The company was a manufacturer of brass work for water, gas and steam as well as Carr and Wilson’s patent cut files. Originally located in Pittston, PA, the company was moved to Scranton in 1865. In 1871, James M. Everhart purchased a half-interest in the firm and the company continued as McLaren and Everhart. McLaren died in 1873 and Everhart became the sole proprietor of the Scranton Brass Works. Dr. Isaiah Fawkes Everhart, James’s brother, became an active investor in the company and served for a time as president of the company. An ad in the 1891Colliery Engineer Pocket-book of Principles Rules, Formulæ, and Tables shown in the next pic notes that the Scranton Brass Works and James Everhart was a manufacturer of all types of safety lamps picturing both a Davy and bullseye surveying lamp. James Everhart died in May 1897 at the age of 69. After his death, the company’s name was changed to the Everhart Brass Works. Dr. Isaiah Everhart continued his interests in the company and in 1907, he gifted a museum to the city of Scranton that opened in 1908 as the Everhart Museum of Natural History, Science and Art. The museum today is the largest general museum in Northeastern Pennsylvania. He died in May 1911. The Everhart Brass Works continued in business until the early 1940s.] EVERHART BRASS WORKS DAVY - Brass Davy style safety lamp, 9 1/4 in. tall, 3 3/8 in. base dia., marked on hood EVERHART BRASS WORKS SCRANTON, PA, marked 17 on screw lock and 5 on inside of base, complete with flat wick and wick lifter [The Scranton Brass and File Works was founded in 1853 by John McLaren. The company was a manufacturer of brass work for water, gas and steam as well as Carr and Wilson’s patent cut files. Originally located in Pittston, PA, the company was moved to Scranton in 1865. In 1871, James M. Everhart purchased a half-interest in the firm and the company continued as McLaren and Everhart. McLaren died in 1873 and Everhart became the sole proprietor of the Scranton Brass Works. Dr. Isaiah Fawkes Everhart, James’s brother, became an active investor in the company and served for a time as president of the company. An ad in the 1891Colliery Engineer Pocket-book of Principles Rules, Formulæ, and Tables shown in the next pic notes that the Scranton Brass Works and James Everhart was a manufacturer of all types of safety lamps picturing both a Davy and bullseye surveying lamp. James Everhart died in May 1897 at the age of 69. After his death, the company’s name was changed to the Everhart Brass Works. Dr. Isaiah Everhart continued his interests in the company and in 1907, he gifted a museum to the city of Scranton that opened in 1908 as the Everhart Museum of Natural History, Science and Art. The museum today is the largest general museum in Northeastern Pennsylvania. He died in May 1911. The Everhart Brass Works continued in business until the early 1940s.] slides/Everhart Open.jpg slides/Everhart Ad in 1891 Colliery Engineer.html# Sun, 21 Aug 2011 15:34:19 -0600 slides/Everhart Ad in 1891 Colliery Engineer.JPG slides/Everhart Flying Saucer.html# Sun, 21 Aug 2011 15:34:19 -0600 J M EVERHART MAKER DAVY - All brass Davy style safety lamp with copper gauze and “flying saucer” top, marked on base just below set screw J M EVERHART MAKER SCRANTON PA, 8 1/4 in. tall to top of hook ring with 2 5/8 in. base dia., marked with matching number 14 on base and top, also marked with light stamping of company initials on base, very early style of lamp complete with round wick and wick lifter [The Scranton Brass and File Works was founded in 1853 by John McLaren. The company was a manufacturer of brass work for water, gas and steam as well as Carr and Wilson’s patent cut files. Originally located in Pittston, PA, the company was moved to Scranton in 1865. In 1871, James M. Everhart purchased a half-interest in the firm and the company continued as McLaren and Everhart. McLaren died in 1873 and Everhart became the sole proprietor of the Scranton Brass Works. Dr. Isaiah Fawkes Everhart, James’s brother, became an active investor in the company and served for a time as president of the company. An ad in the 1891Colliery Engineer Pocket-book of Principles Rules, Formulæ, and Tables notes that the Scranton Brass Works and James Everhart was a manufacturer of all types of safety lamps picturing both a Davy and bullseye surveying lamp. James Everhart died in May 1897 at the age of 69. After his death, the company’s name was changed to the Everhart Brass Works. Dr. Isaiah Everhart continued his interests in the company and in 1907, he gifted a museum to the city of Scranton that opened in 1908 as the Everhart Museum of Natural History, Science and Art. The museum today is the largest general museum in Northeastern Pennsylvania. He died in May 1911. The Everhart Brass Works continued in business until the early 1940s.] J M EVERHART MAKER DAVY - All brass Davy style safety lamp with copper gauze and “flying saucer” top, marked on base just below set screw J M EVERHART MAKER SCRANTON PA, 8 1/4 in. tall to top of hook ring with 2 5/8 in. base dia., marked with matching number 14 on base and top, also marked with light stamping of company initials on base, very early style of lamp complete with round wick and wick lifter [The Scranton Brass and File Works was founded in 1853 by John McLaren. The company was a manufacturer of brass work for water, gas and steam as well as Carr and Wilson’s patent cut files. Originally located in Pittston, PA, the company was moved to Scranton in 1865. In 1871, James M. Everhart purchased a half-interest in the firm and the company continued as McLaren and Everhart. McLaren died in 1873 and Everhart became the sole proprietor of the Scranton Brass Works. Dr. Isaiah Fawkes Everhart, James’s brother, became an active investor in the company and served for a time as president of the company. An ad in the 1891Colliery Engineer Pocket-book of Principles Rules, Formulæ, and Tables notes that the Scranton Brass Works and James Everhart was a manufacturer of all types of safety lamps picturing both a Davy and bullseye surveying lamp. James Everhart died in May 1897 at the age of 69. After his death, the company’s name was changed to the Everhart Brass Works. Dr. Isaiah Everhart continued his interests in the company and in 1907, he gifted a museum to the city of Scranton that opened in 1908 as the Everhart Museum of Natural History, Science and Art. The museum today is the largest general museum in Northeastern Pennsylvania. He died in May 1911. The Everhart Brass Works continued in business until the early 1940s.] slides/Everhart Flying Saucer.JPG slides/Everhart Flying Saucer Open.html# Sun, 21 Aug 2011 15:34:19 -0600 J M EVERHART MAKER DAVY - All brass Davy style safety lamp with copper gauze and “flying saucer” top, marked on base just below set screw J M EVERHART MAKER SCRANTON PA, 8 1/4 in. tall to top of hook ring with 2 5/8 in. base dia., marked with matching number 14 on base and top, also marked with light stamping of company initials on base, very early style of lamp complete with round wick and wick lifter [The Scranton Brass and File Works was founded in 1853 by John McLaren. The company was a manufacturer of brass work for water, gas and steam as well as Carr and Wilson’s patent cut files. Originally located in Pittston, PA, the company was moved to Scranton in 1865. In 1871, James M. Everhart purchased a half-interest in the firm and the company continued as McLaren and Everhart. McLaren died in 1873 and Everhart became the sole proprietor of the Scranton Brass Works. Dr. Isaiah Fawkes Everhart, James’s brother, became an active investor in the company and served for a time as president of the company. An ad in the 1891Colliery Engineer Pocket-book of Principles Rules, Formulæ, and Tables notes that the Scranton Brass Works and James Everhart was a manufacturer of all types of safety lamps picturing both a Davy and bullseye surveying lamp. James Everhart died in May 1897 at the age of 69. After his death, the company’s name was changed to the Everhart Brass Works. Dr. Isaiah Everhart continued his interests in the company and in 1907, he gifted a museum to the city of Scranton that opened in 1908 as the Everhart Museum of Natural History, Science and Art. The museum today is the largest general museum in Northeastern Pennsylvania. He died in May 1911. The Everhart Brass Works continued in business until the early 1940s.] J M EVERHART MAKER DAVY - All brass Davy style safety lamp with copper gauze and “flying saucer” top, marked on base just below set screw J M EVERHART MAKER SCRANTON PA, 8 1/4 in. tall to top of hook ring with 2 5/8 in. base dia., marked with matching number 14 on base and top, also marked with light stamping of company initials on base, very early style of lamp complete with round wick and wick lifter [The Scranton Brass and File Works was founded in 1853 by John McLaren. The company was a manufacturer of brass work for water, gas and steam as well as Carr and Wilson’s patent cut files. Originally located in Pittston, PA, the company was moved to Scranton in 1865. In 1871, James M. Everhart purchased a half-interest in the firm and the company continued as McLaren and Everhart. McLaren died in 1873 and Everhart became the sole proprietor of the Scranton Brass Works. Dr. Isaiah Fawkes Everhart, James’s brother, became an active investor in the company and served for a time as president of the company. An ad in the 1891Colliery Engineer Pocket-book of Principles Rules, Formulæ, and Tables notes that the Scranton Brass Works and James Everhart was a manufacturer of all types of safety lamps picturing both a Davy and bullseye surveying lamp. James Everhart died in May 1897 at the age of 69. After his death, the company’s name was changed to the Everhart Brass Works. Dr. Isaiah Everhart continued his interests in the company and in 1907, he gifted a museum to the city of Scranton that opened in 1908 as the Everhart Museum of Natural History, Science and Art. The museum today is the largest general museum in Northeastern Pennsylvania. He died in May 1911. The Everhart Brass Works continued in business until the early 1940s.] slides/Everhart Flying Saucer Open.jpg slides/Ackroyd & Best Pittsburgh Ad in the July 1915 Colliery Engineer.html# Sun, 21 Aug 2011 15:34:19 -0600 ACKROYD & BEST PITTSBURGH OFFICE AD IN JULY 1915 COLLIERY ENGINEER - The history of Ackroyd & Best is a storied one. William Ackroyd was born in 1849, the eldest of 11 children. William, trained as a mining engineer, joined his brother Alfred and took over operations of the Morley Main Colliery which was mined for coal from 1855 to 1909. William Best was born in 1846 in Pudsey and moved to Morley at the age of 10 when he started work in the Morley Main Colliery as a Pit Boy. He worked his way up through lamp foreman and became well acquainted with William Ackroyd. Together they opened their first factory in 1896 to produce safety lamps in Morley at the Hembrigg Lamp Works and in 1897 they formed a limited company with Ackroyd as Chairman and Best as General Manager. They were producing lamps at Hembrigg using the most up-to-date machinery available at the time. In 1902, Hembrigg Works was found to be structurally unsafe and the company was forced to find new quarters at the Perseverance Works where they remained till 1911. Meanwhile, Earnest Arthur Hailwood was born in St. Helens, Lancashire, in 1877, the son of an engineer. Schooled early in Sheffield, he was one of 12 children and for lack of family finances, he started work at the age of 12. By 16 he was employed at a steel foundry in Sheffield and in 1899 at the age of 22 he moved to Morley and started work with Ackroyd & Best. By 1906, Ackroyd & Best boasted that over 250,000 of their lamps were in use. Hailwood worked his way up through the ranks. The relationship between William Best and Ackroyd and the other company directors had become so acrimonious over operation of the company that in 1908 Best was dismissed by the company. Earnest Hailwood was then promoted to Best’s position as General Manager of the company. Best through other endeavors continued to work on the development of miners’ lamps till his death in 1932. Hailwood energized the company as it moved to its new manufacturing facility at Beacon Works in 1911. It is thought that the company started the Pittsburgh, PA office during this period to expand its marketing of lamp products overseas. The company then added the Glass Works to the Beacon Works in 1915 for a secure source of glass during the start of WWI. Following Ackroyd’s death in 1920, Hailwood developed the company to become the largest manufacturer of illuminating glassware and fittings in England during the 1920s. Hailwood was a prodigious inventor having taken out nearly 200 patents covering a range of items from miners’ lamps to glass and lighting products. In 1927 the company’s name was changed to Hailwood and Ackroyd and Hailwood continued to manage the company until 1937. The company continued to make glass products until 1979 when the business closed. See Horning, Eureka #29, pp 19-25 and Horning, Eureka #31, pp 20-24 ACKROYD & BEST PITTSBURGH OFFICE AD IN JULY 1915 COLLIERY ENGINEER - The history of Ackroyd & Best is a storied one. William Ackroyd was born in 1849, the eldest of 11 children. William, trained as a mining engineer, joined his brother Alfred and took over operations of the Morley Main Colliery which was mined for coal from 1855 to 1909. William Best was born in 1846 in Pudsey and moved to Morley at the age of 10 when he started work in the Morley Main Colliery as a Pit Boy. He worked his way up through lamp foreman and became well acquainted with William Ackroyd. Together they opened their first factory in 1896 to produce safety lamps in Morley at the Hembrigg Lamp Works and in 1897 they formed a limited company with Ackroyd as Chairman and Best as General Manager. They were producing lamps at Hembrigg using the most up-to-date machinery available at the time. In 1902, Hembrigg Works was found to be structurally unsafe and the company was forced to find new quarters at the Perseverance Works where they remained till 1911. Meanwhile, Earnest Arthur Hailwood was born in St. Helens, Lancashire, in 1877, the son of an engineer. Schooled early in Sheffield, he was one of 12 children and for lack of family finances, he started work at the age of 12. By 16 he was employed at a steel foundry in Sheffield and in 1899 at the age of 22 he moved to Morley and started work with Ackroyd & Best. By 1906, Ackroyd & Best boasted that over 250,000 of their lamps were in use. Hailwood worked his way up through the ranks. The relationship between William Best and Ackroyd and the other company directors had become so acrimonious over operation of the company that in 1908 Best was dismissed by the company. Earnest Hailwood was then promoted to Best’s position as General Manager of the company. Best through other endeavors continued to work on the development of miners’ lamps till his death in 1932. Hailwood energized the company as it moved to its new manufacturing facility at Beacon Works in 1911. It is thought that the company started the Pittsburgh, PA office during this period to expand its marketing of lamp products overseas. The company then added the Glass Works to the Beacon Works in 1915 for a secure source of glass during the start of WWI. Following Ackroyd’s death in 1920, Hailwood developed the company to become the largest manufacturer of illuminating glassware and fittings in England during the 1920s. Hailwood was a prodigious inventor having taken out nearly 200 patents covering a range of items from miners’ lamps to glass and lighting products. In 1927 the company’s name was changed to Hailwood and Ackroyd and Hailwood continued to manage the company until 1937. The company continued to make glass products until 1979 when the business closed. See Horning, Eureka #29, pp 19-25 and Horning, Eureka #31, pp 20-24 slides/Ackroyd & Best Pittsburgh Ad in the July 1915 Colliery Engineer.jpg slides/Hailwood Lamp Ackroyd & Best.html# Sun, 21 Aug 2011 15:34:19 -0600 HAILWOOD LAMP ACKROYD & BEST - Ackroyd & Best steel and brass lamp, 10 1/2 in. tall to top of hook ring, 3 1/8 in. base dia., with hook and original glass globe marked ACKY BEST A-I, marked on brass tag on steel bonnet ACKROYD & BEST LTD MAKERS NO. (blank) HAILWOOD’S IMPROVED LAMP ADDRESS: ARROT POWER BUILDING BARKER PLACE PITTSBURGH P.A. with OWNERS, FRONT and 119 on top of base brass ring, lamp features a porcelain (Hailwood patent) burner, a vertical magnetic lock that is operated from the underside of the lamp, and an electric relighter that requires a machine fitted with storage batteries and an induction coil to light the lamp, the lamp is equipped with one main iron gauze and a special inner gauze cone, glass combustion tube and flat wick (The interesting aspects of this lamp have to do with the testing and approval of permissible safety lamps in mines where there may be gas by the US Bureau of Mines. The USBM issued its first schedule on safety lamp testing, Schedule 7, “Procedure for Establishing a List of Permissible Miners’ Safety Lamps” in 1915 to answer significant problems with explosions in gaseous coal mines. The only foreign made lamp submitted for testing is the Hailwood lamp manufactured by Ackroyd & Best and identical to the lamp shown. Prior to World War I, Ackroyd & Best, a long-time manufacturer located in Morley, Leeds, England, decided to enter the US market for safety lamps and established an office in Pittsburgh, PA to sell their lamps. An ad shown elsewhere in the pics in the July 1915 Colliery Engineer presents a description of the products available through the Pittsburgh office. To compete in the US market place after 1915, manufacturers by necessity had to carry safety lamps with USBM approval for underground use. Without approval, there was no market. Three manufacturers obtained approvals for their lamps over the next 50 years including Koehler Manufacturing Co. of Marlboro, MA who obtained the first approval No. 201 on August 21, 1915; Ackroyd & Best Ltd. of Pittsburgh, PA who obtained approval No. 202 on January 8, 1917; and Wolf Safety Lamp Co. of America of Brooklyn, NY who received approval No. 204 on July 18, 1921. Although Koehler and Wolf went on to dominate the safety lamp market in the US, it’s unclear what happened with the Ackroyd & Best lamp’s use in the US. It is known that the Hailwood lamp was susceptible to blow outs in low air currents, more so than other lamps. The electrical relighter mechanism required a somewhat complex underground relighter station equipped with storage battery and induction coil chambers, perhaps too cumbersome for miners familiar with the Koehler and Wolf lamps’ simpler relighting options. The Ackroyd & Best name was changed in 1927 to Hailwood and Ackroyd and lamps after that date are so marked. It is unknown how long Ackroyd & Best maintained their office in Pittsburgh but footnotes in USBM publications showing safety lamp approval lists indicate that Ackroyd & Best ‘s Hailwood lamp was not used in the US, perhaps because the market here would not support their sales. See J. W. Paul, L. C. Ilsley and E. J. Gleim, Flame Safety Lamps, US Bureau of Mines Bulletin No. 227, 1924) HAILWOOD LAMP ACKROYD & BEST - Ackroyd & Best steel and brass lamp, 10 1/2 in. tall to top of hook ring, 3 1/8 in. base dia., with hook and original glass globe marked ACKY BEST A-I, marked on brass tag on steel bonnet ACKROYD & BEST LTD MAKERS NO. (blank) HAILWOOD’S IMPROVED LAMP ADDRESS: ARROT POWER BUILDING BARKER PLACE PITTSBURGH P.A. with OWNERS, FRONT and 119 on top of base brass ring, lamp features a porcelain (Hailwood patent) burner, a vertical magnetic lock that is operated from the underside of the lamp, and an electric relighter that requires a machine fitted with storage batteries and an induction coil to light the lamp, the lamp is equipped with one main iron gauze and a special inner gauze cone, glass combustion tube and flat wick (The interesting aspects of this lamp have to do with the testing and approval of permissible safety lamps in mines where there may be gas by the US Bureau of Mines. The USBM issued its first schedule on safety lamp testing, Schedule 7, “Procedure for Establishing a List of Permissible Miners’ Safety Lamps” in 1915 to answer significant problems with explosions in gaseous coal mines. The only foreign made lamp submitted for testing is the Hailwood lamp manufactured by Ackroyd & Best and identical to the lamp shown. Prior to World War I, Ackroyd & Best, a long-time manufacturer located in Morley, Leeds, England, decided to enter the US market for safety lamps and established an office in Pittsburgh, PA to sell their lamps. An ad shown elsewhere in the pics in the July 1915 Colliery Engineer presents a description of the products available through the Pittsburgh office. To compete in the US market place after 1915, manufacturers by necessity had to carry safety lamps with USBM approval for underground use. Without approval, there was no market. Three manufacturers obtained approvals for their lamps over the next 50 years including Koehler Manufacturing Co. of Marlboro, MA who obtained the first approval No. 201 on August 21, 1915; Ackroyd & Best Ltd. of Pittsburgh, PA who obtained approval No. 202 on January 8, 1917; and Wolf Safety Lamp Co. of America of Brooklyn, NY who received approval No. 204 on July 18, 1921. Although Koehler and Wolf went on to dominate the safety lamp market in the US, it’s unclear what happened with the Ackroyd & Best lamp’s use in the US. It is known that the Hailwood lamp was susceptible to blow outs in low air currents, more so than other lamps. The electrical relighter mechanism required a somewhat complex underground relighter station equipped with storage battery and induction coil chambers, perhaps too cumbersome for miners familiar with the Koehler and Wolf lamps’ simpler relighting options. The Ackroyd & Best name was changed in 1927 to Hailwood and Ackroyd and lamps after that date are so marked. It is unknown how long Ackroyd & Best maintained their office in Pittsburgh but footnotes in USBM publications showing safety lamp approval lists indicate that Ackroyd & Best ‘s Hailwood lamp was not used in the US, perhaps because the market here would not support their sales. See J. W. Paul, L. C. Ilsley and E. J. Gleim, Flame Safety Lamps, US Bureau of Mines Bulletin No. 227, 1924) slides/Hailwood Lamp Ackroyd & Best.jpg slides/Hailwood Lamp Ackroyd & Best Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 HAILWOOD LAMP ACKROYD & BEST - Ackroyd & Best steel and brass lamp, 10 1/2 in. tall to top of hook ring, 3 1/8 in. base dia., with hook and original glass globe marked ACKY BEST A-I, marked on brass tag on steel bonnet ACKROYD & BEST LTD MAKERS NO. (blank) HAILWOOD’S IMPROVED LAMP ADDRESS: ARROT POWER BUILDING BARKER PLACE PITTSBURGH P.A. with OWNERS, FRONT and 119 on top of base brass ring, lamp features a porcelain (Hailwood patent) burner, a vertical magnetic lock that is operated from the underside of the lamp, and an electric relighter that requires a machine fitted with storage batteries and an induction coil to light the lamp, the lamp is equipped with one main iron gauze and a special inner gauze cone, glass combustion tube and flat wick (The interesting aspects of this lamp have to do with the testing and approval of permissible safety lamps in mines where there may be gas by the US Bureau of Mines. The USBM issued its first schedule on safety lamp testing, Schedule 7, “Procedure for Establishing a List of Permissible Miners’ Safety Lamps” in 1915 to answer significant problems with explosions in gaseous coal mines. The only foreign made lamp submitted for testing is the Hailwood lamp manufactured by Ackroyd & Best and identical to the lamp shown. Prior to World War I, Ackroyd & Best, a long-time manufacturer located in Morley, Leeds, England, decided to enter the US market for safety lamps and established an office in Pittsburgh, PA to sell their lamps. An ad shown elsewhere in the pics in the July 1915 Colliery Engineer presents a description of the products available through the Pittsburgh office. To compete in the US market place after 1915, manufacturers by necessity had to carry safety lamps with USBM approval for underground use. Without approval, there was no market. Three manufacturers obtained approvals for their lamps over the next 50 years including Koehler Manufacturing Co. of Marlboro, MA who obtained the first approval No. 201 on August 21, 1915; Ackroyd & Best Ltd. of Pittsburgh, PA who obtained approval No. 202 on January 8, 1917; and Wolf Safety Lamp Co. of America of Brooklyn, NY who received approval No. 204 on July 18, 1921. Although Koehler and Wolf went on to dominate the safety lamp market in the US, it’s unclear what happened with the Ackroyd & Best lamp’s use in the US. It is known that the Hailwood lamp was susceptible to blow outs in low air currents, more so than other lamps. The electrical relighter mechanism required a somewhat complex underground relighter station equipped with storage battery and induction coil chambers, perhaps too cumbersome for miners familiar with the Koehler and Wolf lamps’ simpler relighting options. The Ackroyd & Best name was changed in 1927 to Hailwood and Ackroyd and lamps after that date are so marked. It is unknown how long Ackroyd & Best maintained their office in Pittsburgh but footnotes in USBM publications showing safety lamp approval lists indicate that Ackroyd & Best ‘s Hailwood lamp was not used in the US, perhaps because the market here would not support their sales. See J. W. Paul, L. C. Ilsley and E. J. Gleim, Flame Safety Lamps, US Bureau of Mines Bulletin No. 227, 1924) HAILWOOD LAMP ACKROYD & BEST - Ackroyd & Best steel and brass lamp, 10 1/2 in. tall to top of hook ring, 3 1/8 in. base dia., with hook and original glass globe marked ACKY BEST A-I, marked on brass tag on steel bonnet ACKROYD & BEST LTD MAKERS NO. (blank) HAILWOOD’S IMPROVED LAMP ADDRESS: ARROT POWER BUILDING BARKER PLACE PITTSBURGH P.A. with OWNERS, FRONT and 119 on top of base brass ring, lamp features a porcelain (Hailwood patent) burner, a vertical magnetic lock that is operated from the underside of the lamp, and an electric relighter that requires a machine fitted with storage batteries and an induction coil to light the lamp, the lamp is equipped with one main iron gauze and a special inner gauze cone, glass combustion tube and flat wick (The interesting aspects of this lamp have to do with the testing and approval of permissible safety lamps in mines where there may be gas by the US Bureau of Mines. The USBM issued its first schedule on safety lamp testing, Schedule 7, “Procedure for Establishing a List of Permissible Miners’ Safety Lamps” in 1915 to answer significant problems with explosions in gaseous coal mines. The only foreign made lamp submitted for testing is the Hailwood lamp manufactured by Ackroyd & Best and identical to the lamp shown. Prior to World War I, Ackroyd & Best, a long-time manufacturer located in Morley, Leeds, England, decided to enter the US market for safety lamps and established an office in Pittsburgh, PA to sell their lamps. An ad shown elsewhere in the pics in the July 1915 Colliery Engineer presents a description of the products available through the Pittsburgh office. To compete in the US market place after 1915, manufacturers by necessity had to carry safety lamps with USBM approval for underground use. Without approval, there was no market. Three manufacturers obtained approvals for their lamps over the next 50 years including Koehler Manufacturing Co. of Marlboro, MA who obtained the first approval No. 201 on August 21, 1915; Ackroyd & Best Ltd. of Pittsburgh, PA who obtained approval No. 202 on January 8, 1917; and Wolf Safety Lamp Co. of America of Brooklyn, NY who received approval No. 204 on July 18, 1921. Although Koehler and Wolf went on to dominate the safety lamp market in the US, it’s unclear what happened with the Ackroyd & Best lamp’s use in the US. It is known that the Hailwood lamp was susceptible to blow outs in low air currents, more so than other lamps. The electrical relighter mechanism required a somewhat complex underground relighter station equipped with storage battery and induction coil chambers, perhaps too cumbersome for miners familiar with the Koehler and Wolf lamps’ simpler relighting options. The Ackroyd & Best name was changed in 1927 to Hailwood and Ackroyd and lamps after that date are so marked. It is unknown how long Ackroyd & Best maintained their office in Pittsburgh but footnotes in USBM publications showing safety lamp approval lists indicate that Ackroyd & Best ‘s Hailwood lamp was not used in the US, perhaps because the market here would not support their sales. See J. W. Paul, L. C. Ilsley and E. J. Gleim, Flame Safety Lamps, US Bureau of Mines Bulletin No. 227, 1924) slides/Hailwood Lamp Ackroyd & Best Marking.jpg slides/Hailwood Lamp Ackroyd & Best Bottom I.html# Sun, 21 Aug 2011 15:34:19 -0600 HAILWOOD LAMP ACKROYD & BEST - Ackroyd & Best steel and brass lamp, 10 1/2 in. tall to top of hook ring, 3 1/8 in. base dia., with hook and original glass globe marked ACKY BEST A-I, marked on brass tag on steel bonnet ACKROYD & BEST LTD MAKERS NO. (blank) HAILWOOD’S IMPROVED LAMP ADDRESS: ARROT POWER BUILDING BARKER PLACE PITTSBURGH P.A. with OWNERS, FRONT and 119 on top of base brass ring, lamp features a porcelain (Hailwood patent) burner, a vertical magnetic lock that is operated from the underside of the lamp, and an electric relighter that requires a machine fitted with storage batteries and an induction coil to light the lamp, the lamp is equipped with one main iron gauze and a special inner gauze cone, glass combustion tube and flat wick (The interesting aspects of this lamp have to do with the testing and approval of permissible safety lamps in mines where there may be gas by the US Bureau of Mines. The USBM issued its first schedule on safety lamp testing, Schedule 7, “Procedure for Establishing a List of Permissible Miners’ Safety Lamps” in 1915 to answer significant problems with explosions in gaseous coal mines. The only foreign made lamp submitted for testing is the Hailwood lamp manufactured by Ackroyd & Best and identical to the lamp shown. Prior to World War I, Ackroyd & Best, a long-time manufacturer located in Morley, Leeds, England, decided to enter the US market for safety lamps and established an office in Pittsburgh, PA to sell their lamps. An ad shown elsewhere in the pics in the July 1915 Colliery Engineer presents a description of the products available through the Pittsburgh office. To compete in the US market place after 1915, manufacturers by necessity had to carry safety lamps with USBM approval for underground use. Without approval, there was no market. Three manufacturers obtained approvals for their lamps over the next 50 years including Koehler Manufacturing Co. of Marlboro, MA who obtained the first approval No. 201 on August 21, 1915; Ackroyd & Best Ltd. of Pittsburgh, PA who obtained approval No. 202 on January 8, 1917; and Wolf Safety Lamp Co. of America of Brooklyn, NY who received approval No. 204 on July 18, 1921. Although Koehler and Wolf went on to dominate the safety lamp market in the US, it’s unclear what happened with the Ackroyd & Best lamp’s use in the US. It is known that the Hailwood lamp was susceptible to blow outs in low air currents, more so than other lamps. The electrical relighter mechanism required a somewhat complex underground relighter station equipped with storage battery and induction coil chambers, perhaps too cumbersome for miners familiar with the Koehler and Wolf lamps’ simpler relighting options. The Ackroyd & Best name was changed in 1927 to Hailwood and Ackroyd and lamps after that date are so marked. It is unknown how long Ackroyd & Best maintained their office in Pittsburgh but footnotes in USBM publications showing safety lamp approval lists indicate that Ackroyd & Best ‘s Hailwood lamp was not used in the US, perhaps because the market here would not support their sales. See J. W. Paul, L. C. Ilsley and E. J. Gleim, Flame Safety Lamps, US Bureau of Mines Bulletin No. 227, 1924) HAILWOOD LAMP ACKROYD & BEST - Ackroyd & Best steel and brass lamp, 10 1/2 in. tall to top of hook ring, 3 1/8 in. base dia., with hook and original glass globe marked ACKY BEST A-I, marked on brass tag on steel bonnet ACKROYD & BEST LTD MAKERS NO. (blank) HAILWOOD’S IMPROVED LAMP ADDRESS: ARROT POWER BUILDING BARKER PLACE PITTSBURGH P.A. with OWNERS, FRONT and 119 on top of base brass ring, lamp features a porcelain (Hailwood patent) burner, a vertical magnetic lock that is operated from the underside of the lamp, and an electric relighter that requires a machine fitted with storage batteries and an induction coil to light the lamp, the lamp is equipped with one main iron gauze and a special inner gauze cone, glass combustion tube and flat wick (The interesting aspects of this lamp have to do with the testing and approval of permissible safety lamps in mines where there may be gas by the US Bureau of Mines. The USBM issued its first schedule on safety lamp testing, Schedule 7, “Procedure for Establishing a List of Permissible Miners’ Safety Lamps” in 1915 to answer significant problems with explosions in gaseous coal mines. The only foreign made lamp submitted for testing is the Hailwood lamp manufactured by Ackroyd & Best and identical to the lamp shown. Prior to World War I, Ackroyd & Best, a long-time manufacturer located in Morley, Leeds, England, decided to enter the US market for safety lamps and established an office in Pittsburgh, PA to sell their lamps. An ad shown elsewhere in the pics in the July 1915 Colliery Engineer presents a description of the products available through the Pittsburgh office. To compete in the US market place after 1915, manufacturers by necessity had to carry safety lamps with USBM approval for underground use. Without approval, there was no market. Three manufacturers obtained approvals for their lamps over the next 50 years including Koehler Manufacturing Co. of Marlboro, MA who obtained the first approval No. 201 on August 21, 1915; Ackroyd & Best Ltd. of Pittsburgh, PA who obtained approval No. 202 on January 8, 1917; and Wolf Safety Lamp Co. of America of Brooklyn, NY who received approval No. 204 on July 18, 1921. Although Koehler and Wolf went on to dominate the safety lamp market in the US, it’s unclear what happened with the Ackroyd & Best lamp’s use in the US. It is known that the Hailwood lamp was susceptible to blow outs in low air currents, more so than other lamps. The electrical relighter mechanism required a somewhat complex underground relighter station equipped with storage battery and induction coil chambers, perhaps too cumbersome for miners familiar with the Koehler and Wolf lamps’ simpler relighting options. The Ackroyd & Best name was changed in 1927 to Hailwood and Ackroyd and lamps after that date are so marked. It is unknown how long Ackroyd & Best maintained their office in Pittsburgh but footnotes in USBM publications showing safety lamp approval lists indicate that Ackroyd & Best ‘s Hailwood lamp was not used in the US, perhaps because the market here would not support their sales. See J. W. Paul, L. C. Ilsley and E. J. Gleim, Flame Safety Lamps, US Bureau of Mines Bulletin No. 227, 1924) slides/Hailwood Lamp Ackroyd & Best Bottom I.jpg slides/Hailwood Lamp Ackroyd & Best Bottom II.html# Sun, 21 Aug 2011 15:34:19 -0600 HAILWOOD LAMP ACKROYD & BEST - Ackroyd & Best steel and brass lamp, 10 1/2 in. tall to top of hook ring, 3 1/8 in. base dia., with hook and original glass globe marked ACKY BEST A-I, marked on brass tag on steel bonnet ACKROYD & BEST LTD MAKERS NO. (blank) HAILWOOD’S IMPROVED LAMP ADDRESS: ARROT POWER BUILDING BARKER PLACE PITTSBURGH P.A. with OWNERS, FRONT and 119 on top of base brass ring, lamp features a porcelain (Hailwood patent) burner, a vertical magnetic lock that is operated from the underside of the lamp, and an electric relighter that requires a machine fitted with storage batteries and an induction coil to light the lamp, the lamp is equipped with one main iron gauze and a special inner gauze cone, glass combustion tube and flat wick (The interesting aspects of this lamp have to do with the testing and approval of permissible safety lamps in mines where there may be gas by the US Bureau of Mines. The USBM issued its first schedule on safety lamp testing, Schedule 7, “Procedure for Establishing a List of Permissible Miners’ Safety Lamps” in 1915 to answer significant problems with explosions in gaseous coal mines. The only foreign made lamp submitted for testing is the Hailwood lamp manufactured by Ackroyd & Best and identical to the lamp shown. Prior to World War I, Ackroyd & Best, a long-time manufacturer located in Morley, Leeds, England, decided to enter the US market for safety lamps and established an office in Pittsburgh, PA to sell their lamps. An ad shown elsewhere in the pics in the July 1915 Colliery Engineer presents a description of the products available through the Pittsburgh office. To compete in the US market place after 1915, manufacturers by necessity had to carry safety lamps with USBM approval for underground use. Without approval, there was no market. Three manufacturers obtained approvals for their lamps over the next 50 years including Koehler Manufacturing Co. of Marlboro, MA who obtained the first approval No. 201 on August 21, 1915; Ackroyd & Best Ltd. of Pittsburgh, PA who obtained approval No. 202 on January 8, 1917; and Wolf Safety Lamp Co. of America of Brooklyn, NY who received approval No. 204 on July 18, 1921. Although Koehler and Wolf went on to dominate the safety lamp market in the US, it’s unclear what happened with the Ackroyd & Best lamp’s use in the US. It is known that the Hailwood lamp was susceptible to blow outs in low air currents, more so than other lamps. The electrical relighter mechanism required a somewhat complex underground relighter station equipped with storage battery and induction coil chambers, perhaps too cumbersome for miners familiar with the Koehler and Wolf lamps’ simpler relighting options. The Ackroyd & Best name was changed in 1927 to Hailwood and Ackroyd and lamps after that date are so marked. It is unknown how long Ackroyd & Best maintained their office in Pittsburgh but footnotes in USBM publications showing safety lamp approval lists indicate that Ackroyd & Best ‘s Hailwood lamp was not used in the US, perhaps because the market here would not support their sales. See J. W. Paul, L. C. Ilsley and E. J. Gleim, Flame Safety Lamps, US Bureau of Mines Bulletin No. 227, 1924) HAILWOOD LAMP ACKROYD & BEST - Ackroyd & Best steel and brass lamp, 10 1/2 in. tall to top of hook ring, 3 1/8 in. base dia., with hook and original glass globe marked ACKY BEST A-I, marked on brass tag on steel bonnet ACKROYD & BEST LTD MAKERS NO. (blank) HAILWOOD’S IMPROVED LAMP ADDRESS: ARROT POWER BUILDING BARKER PLACE PITTSBURGH P.A. with OWNERS, FRONT and 119 on top of base brass ring, lamp features a porcelain (Hailwood patent) burner, a vertical magnetic lock that is operated from the underside of the lamp, and an electric relighter that requires a machine fitted with storage batteries and an induction coil to light the lamp, the lamp is equipped with one main iron gauze and a special inner gauze cone, glass combustion tube and flat wick (The interesting aspects of this lamp have to do with the testing and approval of permissible safety lamps in mines where there may be gas by the US Bureau of Mines. The USBM issued its first schedule on safety lamp testing, Schedule 7, “Procedure for Establishing a List of Permissible Miners’ Safety Lamps” in 1915 to answer significant problems with explosions in gaseous coal mines. The only foreign made lamp submitted for testing is the Hailwood lamp manufactured by Ackroyd & Best and identical to the lamp shown. Prior to World War I, Ackroyd & Best, a long-time manufacturer located in Morley, Leeds, England, decided to enter the US market for safety lamps and established an office in Pittsburgh, PA to sell their lamps. An ad shown elsewhere in the pics in the July 1915 Colliery Engineer presents a description of the products available through the Pittsburgh office. To compete in the US market place after 1915, manufacturers by necessity had to carry safety lamps with USBM approval for underground use. Without approval, there was no market. Three manufacturers obtained approvals for their lamps over the next 50 years including Koehler Manufacturing Co. of Marlboro, MA who obtained the first approval No. 201 on August 21, 1915; Ackroyd & Best Ltd. of Pittsburgh, PA who obtained approval No. 202 on January 8, 1917; and Wolf Safety Lamp Co. of America of Brooklyn, NY who received approval No. 204 on July 18, 1921. Although Koehler and Wolf went on to dominate the safety lamp market in the US, it’s unclear what happened with the Ackroyd & Best lamp’s use in the US. It is known that the Hailwood lamp was susceptible to blow outs in low air currents, more so than other lamps. The electrical relighter mechanism required a somewhat complex underground relighter station equipped with storage battery and induction coil chambers, perhaps too cumbersome for miners familiar with the Koehler and Wolf lamps’ simpler relighting options. The Ackroyd & Best name was changed in 1927 to Hailwood and Ackroyd and lamps after that date are so marked. It is unknown how long Ackroyd & Best maintained their office in Pittsburgh but footnotes in USBM publications showing safety lamp approval lists indicate that Ackroyd & Best ‘s Hailwood lamp was not used in the US, perhaps because the market here would not support their sales. See J. W. Paul, L. C. Ilsley and E. J. Gleim, Flame Safety Lamps, US Bureau of Mines Bulletin No. 227, 1924) slides/Hailwood Lamp Ackroyd & Best Bottom II.jpg slides/Hughes Bros. Ad 1901 Mines and Minerals.html# Sun, 21 Aug 2011 15:34:19 -0600 HUGHES BROS. AD - Hughes Bros. safety lamps advertised in 1901 Mines and Minerals Magazine HUGHES BROS. AD - Hughes Bros. safety lamps advertised in 1901 Mines and Minerals Magazine slides/Hughes Bros. Ad 1901 Mines and Minerals.JPG slides/Hughes Clanny.html# Sun, 21 Aug 2011 15:34:19 -0600 HUGHES BROS. CLANNY - All brass safety lamp, 10 in. tall, Clanny style, marked HUGHES BROS. SCRANTON PA USA on edge of base HUGHES BROS. CLANNY - All brass safety lamp, 10 in. tall, Clanny style, marked HUGHES BROS. SCRANTON PA USA on edge of base slides/Hughes Clanny.JPG slides/Hughes Clanny Open.html# Sun, 21 Aug 2011 15:34:19 -0600 HUGHES BROS. CLANNY - All brass safety lamp, 10 in. tall, Clanny style, marked HUGHES BROS. SCRANTON PA USA on edge of base HUGHES BROS. CLANNY - All brass safety lamp, 10 in. tall, Clanny style, marked HUGHES BROS. SCRANTON PA USA on edge of base slides/Hughes Clanny Open.jpg slides/Hughes Clanny Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 HUGHES BROS. CLANNY - All brass safety lamp, 10 in. tall, Clanny style, marked HUGHES BROS. SCRANTON PA USA on edge of base HUGHES BROS. CLANNY - All brass safety lamp, 10 in. tall, Clanny style, marked HUGHES BROS. SCRANTON PA USA on edge of base slides/Hughes Clanny Marking.JPG slides/Hughes Davy.html# Sun, 21 Aug 2011 15:34:19 -0600 HUGHES BROS. DAVY - Brass and steel Davy style safety lamp, 9 1/2 in. tall to top of hook ring, 3 3/8 in. base dia., marked on edge of brass base HUGHES BROS. SCRANTON, PA. U.S.A. with round wick, wick lifter, key lock and steel hook, iron gauze, unusual steel hood painted black, unused condition, acquired from Walt Goetz HUGHES BROS. DAVY - Brass and steel Davy style safety lamp, 9 1/2 in. tall to top of hook ring, 3 3/8 in. base dia., marked on edge of brass base HUGHES BROS. SCRANTON, PA. U.S.A. with round wick, wick lifter, key lock and steel hook, iron gauze, unusual steel hood painted black, unused condition, acquired from Walt Goetz slides/Hughes Davy.jpg slides/Hughes Davy Open.html# Sun, 21 Aug 2011 15:34:19 -0600 HUGHES BROS. DAVY - Brass and steel Davy style safety lamp, 9 1/2 in. tall to top of hook ring, 3 3/8 in. base dia., marked on edge of brass base HUGHES BROS. SCRANTON, PA. U.S.A. with round wick, wick lifter, key lock and steel hook, iron gauze, unusual steel hood painted black, unused condition, acquired from Walt Goetz HUGHES BROS. DAVY - Brass and steel Davy style safety lamp, 9 1/2 in. tall to top of hook ring, 3 3/8 in. base dia., marked on edge of brass base HUGHES BROS. SCRANTON, PA. U.S.A. with round wick, wick lifter, key lock and steel hook, iron gauze, unusual steel hood painted black, unused condition, acquired from Walt Goetz slides/Hughes Davy Open.jpg slides/Hughes Davy Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 HUGHES BROS. DAVY - Brass and steel Davy style safety lamp, 9 1/2 in. tall to top of hook ring, 3 3/8 in. base dia., marked on edge of brass base HUGHES BROS. SCRANTON, PA. U.S.A. with round wick, wick lifter, key lock and steel hook, iron gauze, unusual steel hood painted black, unused condition, acquired from Walt Goetz HUGHES BROS. DAVY - Brass and steel Davy style safety lamp, 9 1/2 in. tall to top of hook ring, 3 3/8 in. base dia., marked on edge of brass base HUGHES BROS. SCRANTON, PA. U.S.A. with round wick, wick lifter, key lock and steel hook, iron gauze, unusual steel hood painted black, unused condition, acquired from Walt Goetz slides/Hughes Davy Marking.jpg slides/Hughes Fire Boss.html# Sun, 21 Aug 2011 15:34:19 -0600 HUGHES BROS. FIRE BOSS DAVY - All brass safety lamp, 8 ¾ in. tall, Davy style, marked HUGHES BROS. SCRANTON PA USA on edge of base, Hughes Fire Boss model, with brass flame shield HUGHES BROS. FIRE BOSS DAVY - All brass safety lamp, 8 ¾ in. tall, Davy style, marked HUGHES BROS. SCRANTON PA USA on edge of base, Hughes Fire Boss model, with brass flame shield slides/Hughes Fire Boss.JPG slides/Hughes Fire Boss Open.html# Sun, 21 Aug 2011 15:34:19 -0600 HUGHES BROS. FIRE BOSS DAVY - All brass safety lamp, 8 ¾ in. tall, Davy style, marked HUGHES BROS. SCRANTON PA USA on edge of base, Hughes Fire Boss model, with brass flame shield HUGHES BROS. FIRE BOSS DAVY - All brass safety lamp, 8 ¾ in. tall, Davy style, marked HUGHES BROS. SCRANTON PA USA on edge of base, Hughes Fire Boss model, with brass flame shield slides/Hughes Fire Boss Open.jpg slides/Hughes Fire Boss Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 HUGHES BROS. FIRE BOSS DAVY - All brass safety lamp, 8 ¾ in. tall, Davy style, marked HUGHES BROS. SCRANTON PA USA on edge of base, Hughes Fire Boss model, with brass flame shield HUGHES BROS. FIRE BOSS DAVY - All brass safety lamp, 8 ¾ in. tall, Davy style, marked HUGHES BROS. SCRANTON PA USA on edge of base, Hughes Fire Boss model, with brass flame shield slides/Hughes Fire Boss Marking.JPG slides/Hughes Vest Pocket Lamp.html# Sun, 21 Aug 2011 15:34:19 -0600 VEST POCKET DAVY - Miniature vest pocket Davy safety lamp made by Hughes Bros. Scranton, PA, all brass with steel gauze, 4 3/4 in. to top of hook ring, 1 1/2 in. base dia., marked with letter O on both inside of base and outside edge of base, unmarked otherwise, ex-Larry Click collection [Hughes Bros. made two different miniature safety lamps – a Davy style shown here and a somewhat taller Clanny style. Both are hard to find. While some think these lamps may have been salesman’s samples, it is very clear that they were working lamps probably carried by mine officials and inspectors. The Davy is made of high quality brass and its gauze is the proper hole opening and laced, has a workable wick riser, includes a screw-in ring to support the gauze and the wick holder is secured by a screw-in ring. In all respects, this is a working lamp albeit small. See Ross, Eureka #19, pp 22-23] VEST POCKET DAVY - Miniature vest pocket Davy safety lamp made by Hughes Bros. Scranton, PA, all brass with steel gauze, 4 3/4 in. to top of hook ring, 1 1/2 in. base dia., marked with letter O on both inside of base and outside edge of base, unmarked otherwise, ex-Larry Click collection [Hughes Bros. made two different miniature safety lamps – a Davy style shown here and a somewhat taller Clanny style. Both are hard to find. While some think these lamps may have been salesman’s samples, it is very clear that they were working lamps probably carried by mine officials and inspectors. The Davy is made of high quality brass and its gauze is the proper hole opening and laced, has a workable wick riser, includes a screw-in ring to support the gauze and the wick holder is secured by a screw-in ring. In all respects, this is a working lamp albeit small. See Ross, Eureka #19, pp 22-23] slides/Hughes Vest Pocket Lamp.JPG slides/Hughes Vest Pocket Lamp Opened.html# Sun, 21 Aug 2011 15:34:19 -0600 VEST POCKET DAVY - Miniature vest pocket Davy safety lamp made by Hughes Bros. Scranton, PA, all brass with steel gauze, 4 3/4 in. to top of hook ring, 1 1/2 in. base dia., marked with letter O on both inside of base and outside edge of base, unmarked otherwise, ex-Larry Click collection [Hughes Bros. made two different miniature safety lamps – a Davy style shown here and a somewhat taller Clanny style. Both are hard to find. While some think these lamps may have been salesman’s samples, it is very clear that they were working lamps probably carried by mine officials and inspectors. The Davy is made of high quality brass and its gauze is the proper hole opening and laced, has a workable wick riser, includes a screw-in ring to support the gauze and the wick holder is secured by a screw-in ring. In all respects, this is a working lamp albeit small. See Ross, Eureka #19, pp 22-23] VEST POCKET DAVY - Miniature vest pocket Davy safety lamp made by Hughes Bros. Scranton, PA, all brass with steel gauze, 4 3/4 in. to top of hook ring, 1 1/2 in. base dia., marked with letter O on both inside of base and outside edge of base, unmarked otherwise, ex-Larry Click collection [Hughes Bros. made two different miniature safety lamps – a Davy style shown here and a somewhat taller Clanny style. Both are hard to find. While some think these lamps may have been salesman’s samples, it is very clear that they were working lamps probably carried by mine officials and inspectors. The Davy is made of high quality brass and its gauze is the proper hole opening and laced, has a workable wick riser, includes a screw-in ring to support the gauze and the wick holder is secured by a screw-in ring. In all respects, this is a working lamp albeit small. See Ross, Eureka #19, pp 22-23] slides/Hughes Vest Pocket Lamp Opened.JPG slides/Hughes Vest Pocket Lamp on Left and Hughes Fire Boss Davy on Right.html# Sun, 21 Aug 2011 15:34:19 -0600 slides/Hughes Vest Pocket Lamp on Left and Hughes Fire Boss Davy on Right.JPG slides/Hughes Bros. Ad 1915 Colliery Engineer.html# Sun, 21 Aug 2011 15:34:19 -0600 HUGHES BROS. SAFETY LAMP FAMILY - Ad in 1915 Colliery Engineer HUGHES BROS. SAFETY LAMP FAMILY - Ad in 1915 Colliery Engineer slides/Hughes Bros. Ad 1915 Colliery Engineer.JPG slides/Koehler Aluminum Early Model.html# Sun, 21 Aug 2011 15:34:19 -0600 KOEHLER ALUMINUM - Aluminum safety lamp early model marked KOEHLER MFG. CO., MARLBORO, MA USA on top, U.S.B.M. and 8217 on top edge of base and matching number on brass burner assembly, 11 1/2 in. tall to top of hook ring, key lock, flat wick and dual steel gauzes; this lamp with the key lock was not approved for underground use but yet has a U.S.B.M. marking on the bottom, the marking is thought to be a property mark for the Bureau of Mines, this same lamp in steel with a magnetic lock was approved for underground use in 1915 and the aluminum version with magnetic lock was approved in 1919, it is unlikely the U.S.B.M. would knowingly use an unapproved lamp underground so it is expected this lamp dates to prior to 1919 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) KOEHLER ALUMINUM - Aluminum safety lamp early model marked KOEHLER MFG. CO., MARLBORO, MA USA on top, U.S.B.M. and 8217 on top edge of base and matching number on brass burner assembly, 11 1/2 in. tall to top of hook ring, key lock, flat wick and dual steel gauzes; this lamp with the key lock was not approved for underground use but yet has a U.S.B.M. marking on the bottom, the marking is thought to be a property mark for the Bureau of Mines, this same lamp in steel with a magnetic lock was approved for underground use in 1915 and the aluminum version with magnetic lock was approved in 1919, it is unlikely the U.S.B.M. would knowingly use an unapproved lamp underground so it is expected this lamp dates to prior to 1919 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) slides/Koehler Aluminum Early Model.JPG slides/Koehler Aluminum Early Model Top Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 KOEHLER ALUMINUM - Aluminum safety lamp early model marked KOEHLER MFG. CO., MARLBORO, MA USA on top, U.S.B.M. and 8217 on top edge of base and matching number on brass burner assembly, 11 1/2 in. tall to top of hook ring, key lock, flat wick and dual steel gauzes; this lamp with the key lock was not approved for underground use but yet has a U.S.B.M. marking on the bottom, the marking is thought to be a property mark for the Bureau of Mines, this same lamp in steel with a magnetic lock was approved for underground use in 1915 and the aluminum version with magnetic lock was approved in 1919, it is unlikely the U.S.B.M. would knowingly use an unapproved lamp underground so it is expected this lamp dates to prior to 1919 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) KOEHLER ALUMINUM - Aluminum safety lamp early model marked KOEHLER MFG. CO., MARLBORO, MA USA on top, U.S.B.M. and 8217 on top edge of base and matching number on brass burner assembly, 11 1/2 in. tall to top of hook ring, key lock, flat wick and dual steel gauzes; this lamp with the key lock was not approved for underground use but yet has a U.S.B.M. marking on the bottom, the marking is thought to be a property mark for the Bureau of Mines, this same lamp in steel with a magnetic lock was approved for underground use in 1915 and the aluminum version with magnetic lock was approved in 1919, it is unlikely the U.S.B.M. would knowingly use an unapproved lamp underground so it is expected this lamp dates to prior to 1919 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) slides/Koehler Aluminum Early Model Top Marking.JPG slides/Koehler Aluminum Early Model Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 KOEHLER U.S.B.M. - Aluminum safety lamp early model marked KOEHLER MFG. CO., MARLBORO, MA USA on top, U.S.B.M. and 8217 on top edge of base and matching number on brass burner assembly, 11 1/2 in. tall to top of hook ring, key lock, flat wick and dual steel gauzes; this lamp with the key lock was not approved for underground use but yet has a U.S.B.M. marking on the bottom, the marking is thought to be a property mark for the Bureau of Mines, this same lamp in steel with a magnetic lock was approved for underground use in 1915 and the aluminum version with magnetic lock was approved in 1919, it is unlikely the U.S.B.M. would knowingly use an unapproved lamp underground so it is expected this lamp dates to prior to 1919 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) KOEHLER U.S.B.M. - Aluminum safety lamp early model marked KOEHLER MFG. CO., MARLBORO, MA USA on top, U.S.B.M. and 8217 on top edge of base and matching number on brass burner assembly, 11 1/2 in. tall to top of hook ring, key lock, flat wick and dual steel gauzes; this lamp with the key lock was not approved for underground use but yet has a U.S.B.M. marking on the bottom, the marking is thought to be a property mark for the Bureau of Mines, this same lamp in steel with a magnetic lock was approved for underground use in 1915 and the aluminum version with magnetic lock was approved in 1919, it is unlikely the U.S.B.M. would knowingly use an unapproved lamp underground so it is expected this lamp dates to prior to 1919 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) slides/Koehler Aluminum Early Model Marking.JPG slides/Koehler Aluminum Early Model Assembly.html# Sun, 21 Aug 2011 15:34:19 -0600 KOEHLER ALUMINUM - Aluminum safety lamp early model marked KOEHLER MFG. CO., MARLBORO, MA USA on top, U.S.B.M. and 8217 on top edge of base and matching number on brass burner assembly, 11 1/2 in. tall to top of hook ring, key lock, flat wick and dual steel gauzes; this lamp with the key lock was not approved for underground use but yet has a U.S.B.M. marking on the bottom, the marking is thought to be a property mark for the Bureau of Mines, this same lamp in steel with a magnetic lock was approved for underground use in 1915 and the aluminum version with magnetic lock was approved in 1919, it is unlikely the U.S.B.M. would knowingly use an unapproved lamp underground so it is expected this lamp dates to prior to 1919 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) KOEHLER ALUMINUM - Aluminum safety lamp early model marked KOEHLER MFG. CO., MARLBORO, MA USA on top, U.S.B.M. and 8217 on top edge of base and matching number on brass burner assembly, 11 1/2 in. tall to top of hook ring, key lock, flat wick and dual steel gauzes; this lamp with the key lock was not approved for underground use but yet has a U.S.B.M. marking on the bottom, the marking is thought to be a property mark for the Bureau of Mines, this same lamp in steel with a magnetic lock was approved for underground use in 1915 and the aluminum version with magnetic lock was approved in 1919, it is unlikely the U.S.B.M. would knowingly use an unapproved lamp underground so it is expected this lamp dates to prior to 1919 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) slides/Koehler Aluminum Early Model Assembly.JPG slides/Koehler Aluminum Models -Early on Left and Late on Right.html# Sun, 21 Aug 2011 15:34:19 -0600 KOEHLER LAMPS - During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp shown on the right with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948. The early aluminum version shown on the left was offered in the 1916 Koehler catalog but was approved as permissible by the U.S. Bureau of Mines in 1919 for only the magnetic lock version. It's interesting that the lamp on the left with a key lock has a property marking of the U.S.B.M. apparently obtained for use prior to 1919. KOEHLER LAMPS - During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp shown on the right with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948. The early aluminum version shown on the left was offered in the 1916 Koehler catalog but was approved as permissible by the U.S. Bureau of Mines in 1919 for only the magnetic lock version. It's interesting that the lamp on the left with a key lock has a property marking of the U.S.B.M. apparently obtained for use prior to 1919. slides/Koehler Aluminum Models -Early on Left and Late on Right.JPG slides/Koehler Aluminum.html# Sun, 21 Aug 2011 15:34:19 -0600 KOEHLER NATIONAL - Aluminum Koehler safety lamp, marked on top PERMISSIBLE MINERS SAFETY LAMP ISSUED TO KOEHLER MFG. CO. MARLBORO, MASS. U.S.A. APPROVAL NO. 209 with Bureau of Mines seal, 9 in. tall, magnetic lock (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4) that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) KOEHLER NATIONAL - Aluminum Koehler safety lamp, marked on top PERMISSIBLE MINERS SAFETY LAMP ISSUED TO KOEHLER MFG. CO. MARLBORO, MASS. U.S.A. APPROVAL NO. 209 with Bureau of Mines seal, 9 in. tall, magnetic lock (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4) that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) slides/Koehler Aluminum.JPG slides/Koehler Aluminum Permissible Top Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 KOEHLER NATIONAL - Aluminum Koehler safety lamp, marked on top PERMISSIBLE MINERS SAFETY LAMP ISSUED TO KOEHLER MFG. CO. MARLBORO, MASS. U.S.A. APPROVAL NO. 209 with Bureau of Mines seal, 9 in. tall, magnetic lock (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4) that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) KOEHLER NATIONAL - Aluminum Koehler safety lamp, marked on top PERMISSIBLE MINERS SAFETY LAMP ISSUED TO KOEHLER MFG. CO. MARLBORO, MASS. U.S.A. APPROVAL NO. 209 with Bureau of Mines seal, 9 in. tall, magnetic lock (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4) that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) slides/Koehler Aluminum Permissible Top Marking.JPG slides/Koehler Steel Approval 201.html# Sun, 21 Aug 2011 15:34:19 -0600 KOEHLER STEEL AND BRASS - Steel and brass safety lamp marked KOEHLER MFG. CO., MARLBORO, MASS. U.S.A with USBM seal and APPROVAL NO. 201 PERMISSABLE MINERS SAFETY LAMP on top, 11 1/2 in. tall to top of hook ring, magnetic lock, dual steel gauzes, first lamp approved by USBM for underground use in 1915 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) KOEHLER STEEL AND BRASS - Steel and brass safety lamp marked KOEHLER MFG. CO., MARLBORO, MASS. U.S.A with USBM seal and APPROVAL NO. 201 PERMISSABLE MINERS SAFETY LAMP on top, 11 1/2 in. tall to top of hook ring, magnetic lock, dual steel gauzes, first lamp approved by USBM for underground use in 1915 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) slides/Koehler Steel Approval 201.JPG slides/Koehler Steel Approval 201 Top Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 KOEHLER STEEL AND BRASS - Steel and brass safety lamp marked KOEHLER MFG. CO., MARLBORO, MASS. U.S.A with USBM seal and APPROVAL NO. 201 PERMISSABLE MINERS SAFETY LAMP on top, 11 1/2 in. tall to top of hook ring, magnetic lock, dual steel gauzes, first lamp approved by USBM for underground use in 1915 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) KOEHLER STEEL AND BRASS - Steel and brass safety lamp marked KOEHLER MFG. CO., MARLBORO, MASS. U.S.A with USBM seal and APPROVAL NO. 201 PERMISSABLE MINERS SAFETY LAMP on top, 11 1/2 in. tall to top of hook ring, magnetic lock, dual steel gauzes, first lamp approved by USBM for underground use in 1915 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4), one of which is shown here, that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) slides/Koehler Steel Approval 201 Top Marking.JPG slides/Koehler.html# Sun, 21 Aug 2011 15:34:19 -0600 KOEHLER BRASS - Brass Koehler lamp, 9 in. high, brass label on top marked MSHA, PERMISSABLE FLAME SAFETY LAMP, ISSUED TO KOEHLER MFG. CO., MARLBORO, MASS USA, APPROVAL NO. 209 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4) that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) KOEHLER BRASS - Brass Koehler lamp, 9 in. high, brass label on top marked MSHA, PERMISSABLE FLAME SAFETY LAMP, ISSUED TO KOEHLER MFG. CO., MARLBORO, MASS USA, APPROVAL NO. 209 (The Koehler Manufacturing Company was established in 1912 in Marlborough, MA (this is the official spelling but also spelled Marlboro) by Ernest Koehler. The wooden frame factory, a former S.H.Howe Shoe Plant, was leased to Mr. Koehler for the purpose of manufacturing his Koehler Flame Safety Mine Lamp. By 1914, Koehler was manufacturing safety lamps patterned after the Wolf lamp including the “standard” steel with screw or magnetic locks, bonneted or unbonneted, and a No. 7 which was 2 in. taller than the standard for use in ship holds and coal bunkers. With World War I on the horizon and the suspension of imports of safety lamps from Germany in place, Koehler was well positioned to supply the U.S. market. In 1915 the business was acquired by Henry G. Powning and Henry G. Lapham and incorporated as a new company in 1916. A November 1916 Koehler catalog listed three basic models (Nos. 1, 2 and 4) that resulted in 18 different varieties with options of brass, steel or aluminum, two igniters, two locks, and with and without a bonnet. The No. 7 model was no longer listed. Meanwhile, the U. S. Bureau of Mines was established in 1910 with the charter of increasing mine safety. Part of that effort resulted in a schedule for safety lamp testing issued in 1915. On August 21, 1915, a Koehler bonneted steel lamp with two gauzes and a flat wick was the first safety lamp to be approved by the Bureau of Mines as Approval No. 201. Later on July 29, 1918, the same Koehler lamp with a round wick was approved as No. 201A and two additional aluminum lamps, one with a flat wick as No. 203 and one with a round wick as No. 203A, were approved together on Feb. 7, 1919. Altogether, the four approved lamps all had magnetic locks and differed only in the material of construction and shape of the wick. The approval stamp was placed on the hood above the bonnet showing the USBM seal and approval number. Other lamps with key locks made in brass were available from Koehler but were not approved as permissible. In 1920 a two-story brick building was built adjacent to the original shoe factory to expand production facilities. About this same time, Grant Wheat joined Koehler bringing with him his new electric miner’s cap lamp. The first Wheat Rechargeable Cap Lamp won U.S. Bureau of Mines approval shortly thereafter and became one of the first such lamps to be used in this country. The success of these electric lamps is evident in that Koehler still today uses the Wheat trade name for their electric cap lamps. During the late 1940s, Koehler redesigned their safety lamp making it 2 in. shorter and available in steel, aluminum or brass. The aluminum Koehler 'National" lamp with a double gauze and magnetic lock was approved by the USBM as No. 209 on April 30, 1948 and the same lamp in a steel version was approved as No. 211 on May 6, 1953. The brass version with a magnetic lock was also approved. Responsibility for approval of safety lamps was shifted to the Mine Safety and Health Administration (MSHA) in 1977. The Koehler Company has continued to specialize in underground lighting equipment and today, as part of the Marmon Group, Koehler Lighting Products makes its home in Wilkes-Barre, Pennsylvania. See Moon, Mining Artifact Collector #14, pp 35-36; Pohs, Miner’s Flame Light Book, p 357 and Forbes and Grover, Mine Gases and Methods for Detecting Them, Miners' Circular 33 Revisions June 1937 and March 1954) slides/Koehler.JPG slides/Queen.html# Sun, 21 Aug 2011 15:34:19 -0600 J. W. QUEEN - Brass Clanny-style Queen safety lamp, marked J. W. QUEEN & Co. PHILA. on hood, 10 ¼ in. tall to hook ring [The James W. Queen Co. of Philadelphia was a premier maker of scientific instruments during the mid to latter part of the 19th century. The best known products manufactured by Queen are the highly-sought after microscopes and transits which were sold worldwide. Queen also supplied anemometers, thermometers, aneroid barometers and drawing instruments among a large variety of other scientific products. However, the rarest of the Queen products are their miners’ safety lamps. Very few are known. The one shown here was advertised in an early Queen catalog as item no. 14,526 along with two other miners’ safety lamps and described as “best English make.” It is probable that Queen privately labeled their lamps which were manufactured by others, possibly of English origin. At least one of their lamps may have been manufactured here in the US, possibly by the Everhart Brass Works of Scranton, PA. James W. Queen was born to Irish immigrant parents in Philadelphia, PA in 1811. In his early teens, he apprenticed under John McAllister who was the leading scientific instrument dealer in Philadelphia at the time. By 1836 he joined McAllister as a partner in the firm. He remained so till he went into business for himself in 1853 advertising his business as optician, importer and dealer in optical, mathematical and philosophical instruments. In 1859 he partnered with Samuel Fox and named the new business James W. Queen & Company. James Queen retired from the business in 1870 and died on July 14, 1890. Fox continued the business taking on new partners and by 1877, he had expanded the company into a department store of quality scientific instruments. Items from this period are marked J. (or Jas.) W. Queen and Co. as shown here on this safety lamp. The signature Queen and Co. began to appear on company products in the late 1880s. The company continued in business under the names of several changed owners into the 1900s. See Mitchell, Eureka #10, pp 26-28] J. W. QUEEN - Brass Clanny-style Queen safety lamp, marked J. W. QUEEN & Co. PHILA. on hood, 10 ¼ in. tall to hook ring [The James W. Queen Co. of Philadelphia was a premier maker of scientific instruments during the mid to latter part of the 19th century. The best known products manufactured by Queen are the highly-sought after microscopes and transits which were sold worldwide. Queen also supplied anemometers, thermometers, aneroid barometers and drawing instruments among a large variety of other scientific products. However, the rarest of the Queen products are their miners’ safety lamps. Very few are known. The one shown here was advertised in an early Queen catalog as item no. 14,526 along with two other miners’ safety lamps and described as “best English make.” It is probable that Queen privately labeled their lamps which were manufactured by others, possibly of English origin. At least one of their lamps may have been manufactured here in the US, possibly by the Everhart Brass Works of Scranton, PA. James W. Queen was born to Irish immigrant parents in Philadelphia, PA in 1811. In his early teens, he apprenticed under John McAllister who was the leading scientific instrument dealer in Philadelphia at the time. By 1836 he joined McAllister as a partner in the firm. He remained so till he went into business for himself in 1853 advertising his business as optician, importer and dealer in optical, mathematical and philosophical instruments. In 1859 he partnered with Samuel Fox and named the new business James W. Queen & Company. James Queen retired from the business in 1870 and died on July 14, 1890. Fox continued the business taking on new partners and by 1877, he had expanded the company into a department store of quality scientific instruments. Items from this period are marked J. (or Jas.) W. Queen and Co. as shown here on this safety lamp. The signature Queen and Co. began to appear on company products in the late 1880s. The company continued in business under the names of several changed owners into the 1900s. See Mitchell, Eureka #10, pp 26-28] slides/Queen.JPG slides/Queen Open.html# Sun, 21 Aug 2011 15:34:19 -0600 J. W. QUEEN - Brass Clanny-style Queen safety lamp, marked J. W. QUEEN & Co. PHILA. on hood, 10 ¼ in. tall to hook ring [The James W. Queen Co. of Philadelphia was a premier maker of scientific instruments during the mid to latter part of the 19th century. The best known products manufactured by Queen are the highly-sought after microscopes and transits which were sold worldwide. Queen also supplied anemometers, thermometers, aneroid barometers and drawing instruments among a large variety of other scientific products. However, the rarest of the Queen products are their miners’ safety lamps. Very few are known. The one shown here was advertised in an early Queen catalog as item no. 14,526 along with two other miners’ safety lamps and described as “best English make.” It is probable that Queen privately labeled their lamps which were manufactured by others, possibly of English origin. At least one of their lamps may have been manufactured here in the US, possibly by the Everhart Brass Works of Scranton, PA. James W. Queen was born to Irish immigrant parents in Philadelphia, PA in 1811. In his early teens, he apprenticed under John McAllister who was the leading scientific instrument dealer in Philadelphia at the time. By 1836 he joined McAllister as a partner in the firm. He remained so till he went into business for himself in 1853 advertising his business as optician, importer and dealer in optical, mathematical and philosophical instruments. In 1859 he partnered with Samuel Fox and named the new business James W. Queen & Company. James Queen retired from the business in 1870 and died on July 14, 1890. Fox continued the business taking on new partners and by 1877, he had expanded the company into a department store of quality scientific instruments. Items from this period are marked J. (or Jas.) W. Queen and Co. as shown here on this safety lamp. The signature Queen and Co. began to appear on company products in the late 1880s. The company continued in business under the names of several changed owners into the 1900s. See Mitchell, Eureka #10, pp 26-28] J. W. QUEEN - Brass Clanny-style Queen safety lamp, marked J. W. QUEEN & Co. PHILA. on hood, 10 ¼ in. tall to hook ring [The James W. Queen Co. of Philadelphia was a premier maker of scientific instruments during the mid to latter part of the 19th century. The best known products manufactured by Queen are the highly-sought after microscopes and transits which were sold worldwide. Queen also supplied anemometers, thermometers, aneroid barometers and drawing instruments among a large variety of other scientific products. However, the rarest of the Queen products are their miners’ safety lamps. Very few are known. The one shown here was advertised in an early Queen catalog as item no. 14,526 along with two other miners’ safety lamps and described as “best English make.” It is probable that Queen privately labeled their lamps which were manufactured by others, possibly of English origin. At least one of their lamps may have been manufactured here in the US, possibly by the Everhart Brass Works of Scranton, PA. James W. Queen was born to Irish immigrant parents in Philadelphia, PA in 1811. In his early teens, he apprenticed under John McAllister who was the leading scientific instrument dealer in Philadelphia at the time. By 1836 he joined McAllister as a partner in the firm. He remained so till he went into business for himself in 1853 advertising his business as optician, importer and dealer in optical, mathematical and philosophical instruments. In 1859 he partnered with Samuel Fox and named the new business James W. Queen & Company. James Queen retired from the business in 1870 and died on July 14, 1890. Fox continued the business taking on new partners and by 1877, he had expanded the company into a department store of quality scientific instruments. Items from this period are marked J. (or Jas.) W. Queen and Co. as shown here on this safety lamp. The signature Queen and Co. began to appear on company products in the late 1880s. The company continued in business under the names of several changed owners into the 1900s. See Mitchell, Eureka #10, pp 26-28] slides/Queen Open.jpg slides/Queen Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 J. W. QUEEN - Brass Clanny-style Queen safety lamp, marked J. W. QUEEN & Co. PHILA. on hood, 10 ¼ in. tall to hook ring [The James W. Queen Co. of Philadelphia was a premier maker of scientific instruments during the mid to latter part of the 19th century. The best known products manufactured by Queen are the highly-sought after microscopes and transits which were sold worldwide. Queen also supplied anemometers, thermometers, aneroid barometers and drawing instruments among a large variety of other scientific products. However, the rarest of the Queen products are their miners’ safety lamps. Very few are known. The one shown here was advertised in an early Queen catalog as item no. 14,526 along with two other miners’ safety lamps and described as “best English make.” It is probable that Queen privately labeled their lamps which were manufactured by others, possibly of English origin. At least one of their lamps may have been manufactured here in the US, possibly by the Everhart Brass Works of Scranton, PA. James W. Queen was born to Irish immigrant parents in Philadelphia, PA in 1811. In his early teens, he apprenticed under John McAllister who was the leading scientific instrument dealer in Philadelphia at the time. By 1836 he joined McAllister as a partner in the firm. He remained so till he went into business for himself in 1853 advertising his business as optician, importer and dealer in optical, mathematical and philosophical instruments. In 1859 he partnered with Samuel Fox and named the new business James W. Queen & Company. James Queen retired from the business in 1870 and died on July 14, 1890. Fox continued the business taking on new partners and by 1877, he had expanded the company into a department store of quality scientific instruments. Items from this period are marked J. (or Jas.) W. Queen and Co. as shown here on this safety lamp. The signature Queen and Co. began to appear on company products in the late 1880s. The company continued in business under the names of several changed owners into the 1900s. See Mitchell, Eureka #10, pp 26-28] J. W. QUEEN - Brass Clanny-style Queen safety lamp, marked J. W. QUEEN & Co. PHILA. on hood, 10 ¼ in. tall to hook ring [The James W. Queen Co. of Philadelphia was a premier maker of scientific instruments during the mid to latter part of the 19th century. The best known products manufactured by Queen are the highly-sought after microscopes and transits which were sold worldwide. Queen also supplied anemometers, thermometers, aneroid barometers and drawing instruments among a large variety of other scientific products. However, the rarest of the Queen products are their miners’ safety lamps. Very few are known. The one shown here was advertised in an early Queen catalog as item no. 14,526 along with two other miners’ safety lamps and described as “best English make.” It is probable that Queen privately labeled their lamps which were manufactured by others, possibly of English origin. At least one of their lamps may have been manufactured here in the US, possibly by the Everhart Brass Works of Scranton, PA. James W. Queen was born to Irish immigrant parents in Philadelphia, PA in 1811. In his early teens, he apprenticed under John McAllister who was the leading scientific instrument dealer in Philadelphia at the time. By 1836 he joined McAllister as a partner in the firm. He remained so till he went into business for himself in 1853 advertising his business as optician, importer and dealer in optical, mathematical and philosophical instruments. In 1859 he partnered with Samuel Fox and named the new business James W. Queen & Company. James Queen retired from the business in 1870 and died on July 14, 1890. Fox continued the business taking on new partners and by 1877, he had expanded the company into a department store of quality scientific instruments. Items from this period are marked J. (or Jas.) W. Queen and Co. as shown here on this safety lamp. The signature Queen and Co. began to appear on company products in the late 1880s. The company continued in business under the names of several changed owners into the 1900s. See Mitchell, Eureka #10, pp 26-28] slides/Queen Marking.jpg slides/Wolf Ad 1901 Mines and Minerals.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF SAFETY LAMP AD - This ad in the 1901 Mines and Minerals Magazine notes that the Fidelity International Agency was the sole agent in the U.S. for Wolf lamps imported from Germany WOLF SAFETY LAMP AD - This ad in the 1901 Mines and Minerals Magazine notes that the Fidelity International Agency was the sole agent in the U.S. for Wolf lamps imported from Germany slides/Wolf Ad 1901 Mines and Minerals.JPG slides/Baby Wolf.html# Sun, 21 Aug 2011 15:34:19 -0600 BABY WOLF - Baby Wolf aluminum and brass No. 603 lamp, 7 1/4 in. tall to top of hook ring, 2 1/2 in. base dia., marked on brass tag on top MINE SAFETY APPLIANCES COMPANY PITTSBURGH, PA and stamped with Dept. of Interior Bureau of Mines seal and marked PERMISSIBLE METHANE DETECTOR (MAGNETIC LOCK) APPROVED FOR SAFETY, DURABILITY AND EFFICIENCY APPROVAL NO. 207 ISSUED TO THE WOLF SAFETY LAMP CO. OF AMERICA, INC. on brass tag on bottom, corrugated bonnet with magnetic lock, new old stock condition, owned by an old miner in the Pittston, PA area (Approval No. 207 was issued by the US Bureau of Mines on November 21, 1924 to Wolf specifically for the Baby Wolf Methane Detector. The Baby Wolf is the only flame lamp to receive Bureau of Mines approval as a methane detector. It did not receive approval as a safety lamp because the light output did not meet minimum requirements. The Mine Safety Appliances (MSA) Co. did not carry the Baby Wolf in their 1958 catalog but it’s not clear when Wolf ceased its production. The Wolf Junior with a straight bonnet and the standard Wolf lamp in various forms were still listed in 1958 prior to MSA buying Wolf. MSA was a primary dealer for Wolf lamps long before they bought the Wolf Co. and it’s thought that Wolf added the small MSA oval tags to lamps that they sold to MSA – the tags are very similar to the Wolf tags in shape and size. MSA has been in business continuously since 1914.) BABY WOLF - Baby Wolf aluminum and brass No. 603 lamp, 7 1/4 in. tall to top of hook ring, 2 1/2 in. base dia., marked on brass tag on top MINE SAFETY APPLIANCES COMPANY PITTSBURGH, PA and stamped with Dept. of Interior Bureau of Mines seal and marked PERMISSIBLE METHANE DETECTOR (MAGNETIC LOCK) APPROVED FOR SAFETY, DURABILITY AND EFFICIENCY APPROVAL NO. 207 ISSUED TO THE WOLF SAFETY LAMP CO. OF AMERICA, INC. on brass tag on bottom, corrugated bonnet with magnetic lock, new old stock condition, owned by an old miner in the Pittston, PA area (Approval No. 207 was issued by the US Bureau of Mines on November 21, 1924 to Wolf specifically for the Baby Wolf Methane Detector. The Baby Wolf is the only flame lamp to receive Bureau of Mines approval as a methane detector. It did not receive approval as a safety lamp because the light output did not meet minimum requirements. The Mine Safety Appliances (MSA) Co. did not carry the Baby Wolf in their 1958 catalog but it’s not clear when Wolf ceased its production. The Wolf Junior with a straight bonnet and the standard Wolf lamp in various forms were still listed in 1958 prior to MSA buying Wolf. MSA was a primary dealer for Wolf lamps long before they bought the Wolf Co. and it’s thought that Wolf added the small MSA oval tags to lamps that they sold to MSA – the tags are very similar to the Wolf tags in shape and size. MSA has been in business continuously since 1914.) slides/Baby Wolf.JPG slides/Baby Wolf Open.html# Sun, 21 Aug 2011 15:34:19 -0600 BABY WOLF - Baby Wolf aluminum and brass No. 603 lamp, 7 1/4 in. tall to top of hook ring, 2 1/2 in. base dia., marked on brass tag on top MINE SAFETY APPLIANCES COMPANY PITTSBURGH, PA and stamped with Dept. of Interior Bureau of Mines seal and marked PERMISSIBLE METHANE DETECTOR (MAGNETIC LOCK) APPROVED FOR SAFETY, DURABILITY AND EFFICIENCY APPROVAL NO. 207 ISSUED TO THE WOLF SAFETY LAMP CO. OF AMERICA, INC. on brass tag on bottom, corrugated bonnet with magnetic lock, new old stock condition, owned by an old miner in the Pittston, PA area (Approval No. 207 was issued by the US Bureau of Mines on November 21, 1924 to Wolf specifically for the Baby Wolf Methane Detector. The Baby Wolf is the only flame lamp to receive Bureau of Mines approval as a methane detector. It did not receive approval as a safety lamp because the light output did not meet minimum requirements. The Mine Safety Appliances (MSA) Co. did not carry the Baby Wolf in their 1958 catalog but it’s not clear when Wolf ceased its production. The Wolf Junior with a straight bonnet and the standard Wolf lamp in various forms were still listed in 1958 prior to MSA buying Wolf. MSA was a primary dealer for Wolf lamps long before they bought the Wolf Co. and it’s thought that Wolf added the small MSA oval tags to lamps that they sold to MSA – the tags are very similar to the Wolf tags in shape and size. MSA has been in business continuously since 1914.) BABY WOLF - Baby Wolf aluminum and brass No. 603 lamp, 7 1/4 in. tall to top of hook ring, 2 1/2 in. base dia., marked on brass tag on top MINE SAFETY APPLIANCES COMPANY PITTSBURGH, PA and stamped with Dept. of Interior Bureau of Mines seal and marked PERMISSIBLE METHANE DETECTOR (MAGNETIC LOCK) APPROVED FOR SAFETY, DURABILITY AND EFFICIENCY APPROVAL NO. 207 ISSUED TO THE WOLF SAFETY LAMP CO. OF AMERICA, INC. on brass tag on bottom, corrugated bonnet with magnetic lock, new old stock condition, owned by an old miner in the Pittston, PA area (Approval No. 207 was issued by the US Bureau of Mines on November 21, 1924 to Wolf specifically for the Baby Wolf Methane Detector. The Baby Wolf is the only flame lamp to receive Bureau of Mines approval as a methane detector. It did not receive approval as a safety lamp because the light output did not meet minimum requirements. The Mine Safety Appliances (MSA) Co. did not carry the Baby Wolf in their 1958 catalog but it’s not clear when Wolf ceased its production. The Wolf Junior with a straight bonnet and the standard Wolf lamp in various forms were still listed in 1958 prior to MSA buying Wolf. MSA was a primary dealer for Wolf lamps long before they bought the Wolf Co. and it’s thought that Wolf added the small MSA oval tags to lamps that they sold to MSA – the tags are very similar to the Wolf tags in shape and size. MSA has been in business continuously since 1914.) slides/Baby Wolf Open.jpg slides/Baby Wolf Permissible Label.html# Sun, 21 Aug 2011 15:34:19 -0600 BABY WOLF - Baby Wolf aluminum and brass No. 603 lamp, 7 1/4 in. tall to top of hook ring, 2 1/2 in. base dia., marked on brass tag on top MINE SAFETY APPLIANCES COMPANY PITTSBURGH, PA and stamped as shown with Dept. of Interior Bureau of Mines seal and marked PERMISSIBLE METHANE DETECTOR (MAGNETIC LOCK) APPROVED FOR SAFETY, DURABILITY AND EFFICIENCY APPROVAL NO. 207 ISSUED TO THE WOLF SAFETY LAMP CO. OF AMERICA, INC. on brass tag on bottom, corrugated bonnet with magnetic lock, new old stock condition, owned by an old miner in the Pittston, PA area (Approval No. 207 was issued by the US Bureau of Mines on November 21, 1924 to Wolf specifically for the Baby Wolf Methane Detector. The Baby Wolf is the only flame lamp to receive Bureau of Mines approval as a methane detector. It did not receive approval as a safety lamp because the light output did not meet minimum requirements. The Mine Safety Appliances (MSA) Co. did not carry the Baby Wolf in their 1958 catalog but it’s not clear when Wolf ceased its production. The Wolf Junior with a straight bonnet and the standard Wolf lamp in various forms were still listed in 1958 prior to MSA buying Wolf. MSA was a primary dealer for Wolf lamps long before they bought the Wolf Co. and it’s thought that Wolf added the small MSA oval tags to lamps that they sold to MSA – the tags are very similar to the Wolf tags in shape and size. MSA has been in business continuously since 1914.) BABY WOLF - Baby Wolf aluminum and brass No. 603 lamp, 7 1/4 in. tall to top of hook ring, 2 1/2 in. base dia., marked on brass tag on top MINE SAFETY APPLIANCES COMPANY PITTSBURGH, PA and stamped as shown with Dept. of Interior Bureau of Mines seal and marked PERMISSIBLE METHANE DETECTOR (MAGNETIC LOCK) APPROVED FOR SAFETY, DURABILITY AND EFFICIENCY APPROVAL NO. 207 ISSUED TO THE WOLF SAFETY LAMP CO. OF AMERICA, INC. on brass tag on bottom, corrugated bonnet with magnetic lock, new old stock condition, owned by an old miner in the Pittston, PA area (Approval No. 207 was issued by the US Bureau of Mines on November 21, 1924 to Wolf specifically for the Baby Wolf Methane Detector. The Baby Wolf is the only flame lamp to receive Bureau of Mines approval as a methane detector. It did not receive approval as a safety lamp because the light output did not meet minimum requirements. The Mine Safety Appliances (MSA) Co. did not carry the Baby Wolf in their 1958 catalog but it’s not clear when Wolf ceased its production. The Wolf Junior with a straight bonnet and the standard Wolf lamp in various forms were still listed in 1958 prior to MSA buying Wolf. MSA was a primary dealer for Wolf lamps long before they bought the Wolf Co. and it’s thought that Wolf added the small MSA oval tags to lamps that they sold to MSA – the tags are very similar to the Wolf tags in shape and size. MSA has been in business continuously since 1914.) slides/Baby Wolf Permissible Label.JPG slides/Wolf Junior Early.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF JUNIOR OLDER STYLE - Older style Wolf Junior aluminum lamp, 10 in. tall to top of hook ring, original Wolf globe marked WOLFand MADE IN USA, stamped with Dept. of Interior seal and marked PERMISSIBLE FLAME SAFETY LAMP with APPROVAL NO. on top of lock ring and ISSUED TO THE WOLF SAFETY LAMP CO. OF AM, INC., BROOKLYN, N.Y. on magnetic lock assembly, early bonnet; ex-John Konat collection (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) WOLF JUNIOR OLDER STYLE - Older style Wolf Junior aluminum lamp, 10 in. tall to top of hook ring, original Wolf globe marked WOLFand MADE IN USA, stamped with Dept. of Interior seal and marked PERMISSIBLE FLAME SAFETY LAMP with APPROVAL NO. on top of lock ring and ISSUED TO THE WOLF SAFETY LAMP CO. OF AM, INC., BROOKLYN, N.Y. on magnetic lock assembly, early bonnet; ex-John Konat collection (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) slides/Wolf Junior Early.JPG slides/Wolf Junior Early Open.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF JUNIOR OLDER STYLE - Older style Wolf Junior aluminum lamp, 10 in. tall to top of hook ring, original Wolf globe marked WOLFand MADE IN USA, stamped with Dept. of Interior seal and marked PERMISSIBLE FLAME SAFETY LAMP with APPROVAL NO. on top of lock ring and ISSUED TO THE WOLF SAFETY LAMP CO. OF AM, INC., BROOKLYN, N.Y. on magnetic lock assembly, early bonnet; ex-John Konat collection (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) WOLF JUNIOR OLDER STYLE - Older style Wolf Junior aluminum lamp, 10 in. tall to top of hook ring, original Wolf globe marked WOLFand MADE IN USA, stamped with Dept. of Interior seal and marked PERMISSIBLE FLAME SAFETY LAMP with APPROVAL NO. on top of lock ring and ISSUED TO THE WOLF SAFETY LAMP CO. OF AM, INC., BROOKLYN, N.Y. on magnetic lock assembly, early bonnet; ex-John Konat collection (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) slides/Wolf Junior Early Open.jpg slides/Wolf Junior Later.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF JUNIOR NEWER STYLE - Newer style Wolf Junior aluminum lamp, 10 1/2 in. tall to top of hook ring, original Wolf globe marked WOLF and MADE IN USA, stamped with Dept. of Interior seal and marked PERMISSIBLE FLAME SAFETY LAMP with APPROVAL NO. on top of lock ring and ISSUED TO THE MINE SAFETY APPLIANCES CO. PITTSBURGH, PA. U.S.A. on magnetic lock assembly, later style cylindrical bonnet with vertical vents, attached brass tag marked 20-113 [This style of the Wolf Junior lamp is pictured in Forbes and Grove’s Bureau of Mines Circular 33 Mine Gases and Methods For Detecting Them, March 1954Revision; this is thought to be the first published listing of Bureau of Mines’ Approval No. 210 for the Junior lamp granted on May 6, 1949; around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring (later models as shown here with the cylindrical bonnet are 10 1/2 in. tall to the hook ring). The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) WOLF JUNIOR NEWER STYLE - Newer style Wolf Junior aluminum lamp, 10 1/2 in. tall to top of hook ring, original Wolf globe marked WOLF and MADE IN USA, stamped with Dept. of Interior seal and marked PERMISSIBLE FLAME SAFETY LAMP with APPROVAL NO. on top of lock ring and ISSUED TO THE MINE SAFETY APPLIANCES CO. PITTSBURGH, PA. U.S.A. on magnetic lock assembly, later style cylindrical bonnet with vertical vents, attached brass tag marked 20-113 [This style of the Wolf Junior lamp is pictured in Forbes and Grove’s Bureau of Mines Circular 33 Mine Gases and Methods For Detecting Them, March 1954Revision; this is thought to be the first published listing of Bureau of Mines’ Approval No. 210 for the Junior lamp granted on May 6, 1949; around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring (later models as shown here with the cylindrical bonnet are 10 1/2 in. tall to the hook ring). The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) slides/Wolf Junior Later.JPG slides/Wolf Junior Later Open.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF JUNIOR NEWER STYLE - Newer style Wolf Junior aluminum lamp, 10 1/2 in. tall to top of hook ring, original Wolf globe marked WOLF and MADE IN USA, stamped with Dept. of Interior seal and marked PERMISSIBLE FLAME SAFETY LAMP with APPROVAL NO. on top of lock ring and ISSUED TO THE MINE SAFETY APPLIANCES CO. PITTSBURGH, PA. U.S.A. on magnetic lock assembly, later style cylindrical bonnet with vertical vents, attached brass tag marked 20-113 [This style of the Wolf Junior lamp is pictured in Forbes and Grove’s Bureau of Mines Circular 33 Mine Gases and Methods For Detecting Them, March 1954Revision; this is thought to be the first published listing of Bureau of Mines’ Approval No. 210 for the Junior lamp granted on May 6, 1949; around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring (later models as shown here with the cylindrical bonnet are 10 1/2 in. tall to the hook ring). The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) WOLF JUNIOR NEWER STYLE - Newer style Wolf Junior aluminum lamp, 10 1/2 in. tall to top of hook ring, original Wolf globe marked WOLF and MADE IN USA, stamped with Dept. of Interior seal and marked PERMISSIBLE FLAME SAFETY LAMP with APPROVAL NO. on top of lock ring and ISSUED TO THE MINE SAFETY APPLIANCES CO. PITTSBURGH, PA. U.S.A. on magnetic lock assembly, later style cylindrical bonnet with vertical vents, attached brass tag marked 20-113 [This style of the Wolf Junior lamp is pictured in Forbes and Grove’s Bureau of Mines Circular 33 Mine Gases and Methods For Detecting Them, March 1954Revision; this is thought to be the first published listing of Bureau of Mines’ Approval No. 210 for the Junior lamp granted on May 6, 1949; around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring (later models as shown here with the cylindrical bonnet are 10 1/2 in. tall to the hook ring). The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) slides/Wolf Junior Later Open.jpg slides/Wolf Juniors.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF JUNIORS - Two styles of the Wolf Junior lamp shown side-by-side; the earlier Junior on the left has a tapered bonnet with horizontal vents, is marked with permissible approval issued to The Wolf Safety Lamp Co. of America, and is 10 in. tall to the top of the hook ring; the later Junior on the right has a cylindrical bonnet with vertical vents, is marked with permissible approval issued to The Mine Safety Appliances Co., and is 10 1/2 in. tall to the top of the hook ring; both have a base dia. of 3 1/8 in., magnetic locks, and the same style chimneys, igniter and burner assemblies WOLF JUNIORS - Two styles of the Wolf Junior lamp shown side-by-side; the earlier Junior on the left has a tapered bonnet with horizontal vents, is marked with permissible approval issued to The Wolf Safety Lamp Co. of America, and is 10 in. tall to the top of the hook ring; the later Junior on the right has a cylindrical bonnet with vertical vents, is marked with permissible approval issued to The Mine Safety Appliances Co., and is 10 1/2 in. tall to the top of the hook ring; both have a base dia. of 3 1/8 in., magnetic locks, and the same style chimneys, igniter and burner assemblies slides/Wolf Juniors.JPG slides/Wolf Family - Baby, Junior and Standard.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF FAMILY - Shown left to right are the Baby Wolf, Wolf Junior and Wolf Standard safety lamps. The Baby Wolf is 7 1/4 in. tall, the early Junior is 10 in. tall and the Standard is 11 3/4 in. tall, all measured to the top of the hook ring. All three lamps were approved as permissible by the US Bureau of Mines. The Baby Wolf was approved as a methane detector and the Junior and Standard as safety lamps. As of June 1937, Bureau of Mines testing of Wolf lamps to Schedules 7, 7A and 7B resulted in 5 permissible approval numbers - 204, 205, 206, 207 and 208. In all cases, the lamps are bonneted and have magnetic locks. No. 204 was issued July 18, 1921 for the standard lamp with a brass frame, double steel or brass gauzes and round wick. No. 205 was issued April 24, 1924 for the standard lamp with an aluminum frame, double steel or brass gauzes and round wick. No. 206, also issued April 24, 1924, is the same as No. 205 but with a flat wick. No. 207 was issued Nov. 21, 1924 for the Baby Wolf flame type methane detector with aluminum frame and bonnet, double steel or brass gauzes, round wick, and internal relighter. No. 208 was issued Mar. 14, 1927 as the same as No. 204 but with a flat wick. Finally, the Wolf Junior was approved as No. 210 on May 6, 1949. Wolf lamps were also approved by the Bureau of Mines for interchangeability of certain parts including fuel-font assembly, bonnet assembly, air protective ring, magnetic lock ring assembly and glass chimneys. See Forbes and Grove, Mine Gases and Methods for their Detection, Miners' Circular 33 Revised June 1937, U.S. Bureau of Mines and same, Miners' Circular 33 Revised March 1954 WOLF FAMILY - Shown left to right are the Baby Wolf, Wolf Junior and Wolf Standard safety lamps. The Baby Wolf is 7 1/4 in. tall, the early Junior is 10 in. tall and the Standard is 11 3/4 in. tall, all measured to the top of the hook ring. All three lamps were approved as permissible by the US Bureau of Mines. The Baby Wolf was approved as a methane detector and the Junior and Standard as safety lamps. As of June 1937, Bureau of Mines testing of Wolf lamps to Schedules 7, 7A and 7B resulted in 5 permissible approval numbers - 204, 205, 206, 207 and 208. In all cases, the lamps are bonneted and have magnetic locks. No. 204 was issued July 18, 1921 for the standard lamp with a brass frame, double steel or brass gauzes and round wick. No. 205 was issued April 24, 1924 for the standard lamp with an aluminum frame, double steel or brass gauzes and round wick. No. 206, also issued April 24, 1924, is the same as No. 205 but with a flat wick. No. 207 was issued Nov. 21, 1924 for the Baby Wolf flame type methane detector with aluminum frame and bonnet, double steel or brass gauzes, round wick, and internal relighter. No. 208 was issued Mar. 14, 1927 as the same as No. 204 but with a flat wick. Finally, the Wolf Junior was approved as No. 210 on May 6, 1949. Wolf lamps were also approved by the Bureau of Mines for interchangeability of certain parts including fuel-font assembly, bonnet assembly, air protective ring, magnetic lock ring assembly and glass chimneys. See Forbes and Grove, Mine Gases and Methods for their Detection, Miners' Circular 33 Revised June 1937, U.S. Bureau of Mines and same, Miners' Circular 33 Revised March 1954 slides/Wolf Family - Baby, Junior and Standard.JPG slides/Wolf Fuel Canisters.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF FUEL CANISTERS - Here are three Wolf safety lamp portable fuel canisters, the larger is all brass, marked on brass tag WOLF SAFETY LAMP COMPANY OF AMERICA, INC. NEW YORK, USA, 15 ½ in. tall with spout, 3 in. dia., [from the estate of a federal mine inspector in VA, used in smaller mine fields during 1930s-1940s]; the two smaller safety lamp portable fuel canisters are all brass, marked on cylinder brass tag WOLF SAFETY LAMP COMPANY OF AMERICA, INC. NEW YORK, USA, tank 10 in. tall, 1 3/4 in.dia with the only difference being the length of the fuel nozzle - the longer is 5 1/2 in. and the shorter 3 1/2 in. WOLF FUEL CANISTERS - Here are three Wolf safety lamp portable fuel canisters, the larger is all brass, marked on brass tag WOLF SAFETY LAMP COMPANY OF AMERICA, INC. NEW YORK, USA, 15 ½ in. tall with spout, 3 in. dia., [from the estate of a federal mine inspector in VA, used in smaller mine fields during 1930s-1940s]; the two smaller safety lamp portable fuel canisters are all brass, marked on cylinder brass tag WOLF SAFETY LAMP COMPANY OF AMERICA, INC. NEW YORK, USA, tank 10 in. tall, 1 3/4 in.dia with the only difference being the length of the fuel nozzle - the longer is 5 1/2 in. and the shorter 3 1/2 in. slides/Wolf Fuel Canisters.JPG slides/Wolf Brass.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF STANDARD BRASS - Solid brass safety lamp, marked on top WOLF SAFETY LAMP CO., BROOKLYN, NY, includes lock key, three-ring globe marked WOLF USA, unfired condition (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) WOLF STANDARD BRASS - Solid brass safety lamp, marked on top WOLF SAFETY LAMP CO., BROOKLYN, NY, includes lock key, three-ring globe marked WOLF USA, unfired condition (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) slides/Wolf Brass.JPG slides/Wolf Magnetic Lock.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF STANDARD ALUMINUM WITH MAGNETIC LOCK - Wolf safety lamp, aluminum with brass bonnet, marked on top MINE SAFETY APPLIANCES CO., PITTSBURGH, USA with round brass tag on font marked DEPT. of INTERIOR, BUREAU of MINES, PERMISSABLE FLAME SAFETY LAMP…, magnetic lock, acquired from Steve Lindberg (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) WOLF STANDARD ALUMINUM WITH MAGNETIC LOCK - Wolf safety lamp, aluminum with brass bonnet, marked on top MINE SAFETY APPLIANCES CO., PITTSBURGH, USA with round brass tag on font marked DEPT. of INTERIOR, BUREAU of MINES, PERMISSABLE FLAME SAFETY LAMP…, magnetic lock, acquired from Steve Lindberg (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) slides/Wolf Magnetic Lock.JPG slides/Wolf Standard Magnetic Lock Open.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF STANDARD ALUMINUM WITH MAGNETIC LOCK - Wolf safety lamp, aluminum with brass bonnet, marked on top MINE SAFETY APPLIANCES CO., PITTSBURGH, USA with round brass tag on font marked DEPT. of INTERIOR, BUREAU of MINES, PERMISSABLE FLAME SAFETY LAMP…, magnetic lock, acquired from Steve Lindberg (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) WOLF STANDARD ALUMINUM WITH MAGNETIC LOCK - Wolf safety lamp, aluminum with brass bonnet, marked on top MINE SAFETY APPLIANCES CO., PITTSBURGH, USA with round brass tag on font marked DEPT. of INTERIOR, BUREAU of MINES, PERMISSABLE FLAME SAFETY LAMP…, magnetic lock, acquired from Steve Lindberg (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) slides/Wolf Standard Magnetic Lock Open.jpg slides/Wolf Standard USBM Permissible Marking.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF STANDARD ALUMINUM WITH MAGNETIC LOCK - Wolf safety lamp, aluminum with brass bonnet, marked on top MINE SAFETY APPLIANCES CO., PITTSBURGH, USA with round brass tag on font marked DEPT. of INTERIOR, BUREAU of MINES, PERMISSABLE FLAME SAFETY LAMP…, magnetic lock, acquired from Steve Lindberg (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) WOLF STANDARD ALUMINUM WITH MAGNETIC LOCK - Wolf safety lamp, aluminum with brass bonnet, marked on top MINE SAFETY APPLIANCES CO., PITTSBURGH, USA with round brass tag on font marked DEPT. of INTERIOR, BUREAU of MINES, PERMISSABLE FLAME SAFETY LAMP…, magnetic lock, acquired from Steve Lindberg (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) slides/Wolf Standard USBM Permissible Marking.jpg slides/Wolf Mirror.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF GAS TESTING LAMP - Wolf brass lamp with gas testing mirror, marked WOLF SAFETY CO. of AMERICA, NEW YORK, USA on base tag; 11 3/4 in. tall to top of hook ring (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) WOLF GAS TESTING LAMP - Wolf brass lamp with gas testing mirror, marked WOLF SAFETY CO. of AMERICA, NEW YORK, USA on base tag; 11 3/4 in. tall to top of hook ring (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) slides/Wolf Mirror.JPG slides/Wolf Screw Lock.html# Sun, 21 Aug 2011 15:34:19 -0600 WOLF STANDARD ALUMINUM WITH KEY LOCK - Wolf safety lamp, aluminum with brass bonnet, marked on top MINE SAFETY APPLIANCES CO., PITTSBURGH, USA with oval brass tag on font marked WOLF SAFETY LAMP CO. of AMERICA, NEW YORK, USA, key type screw lock, acquired from Steve Lindberg (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) WOLF STANDARD ALUMINUM WITH KEY LOCK - Wolf safety lamp, aluminum with brass bonnet, marked on top MINE SAFETY APPLIANCES CO., PITTSBURGH, USA with oval brass tag on font marked WOLF SAFETY LAMP CO. of AMERICA, NEW YORK, USA, key type screw lock, acquired from Steve Lindberg (Around 1913, J. A. Creutzenberg established the Wolf Safety Lamp Company of America in NY. Creutzenberg previously worked for the Friemann and Wolf lamp company in Zwickau, Germany. The standard size Wolf safety lamp was developed in 1883 by M. Charles Wolf of Saxony and introduced into the United States during the 1890s. The Fidelity International Agency was the sole agent for importing the lamp in the early 1900s. These lamps were typically marked Friemann & Wolf GMBH/Zwickau and oftentimes “Made in Germany” along with various patent numbers. Prior to World War I, the Wolf Safety Lamp Company of America was a selling agent, not a manufacturer of lamps. Lamps were imported from Germany and marked with a small oval brass tag bearing the address “Crystal Building, 47/49 West Street, New York.” WW I stopped the importation of lamps from Germany and after the war, the Wolf Safety Lamp Company of America reemerges as a manufacturer of safety lamps. By 1920, the company had moved to Brooklyn where they remained for many years. Lamps manufactured during this time period had an oval brass tag bearing the Brooklyn address. In 1921, the American-made Wolf lamp was approved by the U.S. Bureau of Mines, six years after the Koehler Company obtained its first lamp approval from the USBM. The standard size Wolf lamp manufactured in the U.S was 11 3/4 in. tall to the top of the hook ring by 3.5 in. in dia. and available in both steel and aluminum with brass fittings. Lamps were equipped with the internal flint igniter and wick screw adjustment. The lamp model No. 100 with a corrugated bonnet, flat or round burner, and magnetic lock received USBM approval. Other standard size Wolf lamps included model Nos. 131, 201 and 232 with options of corrugated or plain bonnets, round or flat burners, and key or magnetic locks. In addition, Wolf manufactured the “baby” safety lamps highly prized by collectors. These lamps were 7 1/4 in. tall by 2.5 in. in dia. and came in both aluminum and brass. Identified as lamp model Nos. 600, 602, 602C and 603, they had bonnet options of none, corrugated or plain, round burners, and either key or magnetic locks. The No. 603 lamp with corrugated bonnet and magnetic lock also received USBM approval. Wolf also offered a standard size all brass lamp with hose nipple and kit equipped with a 45 deg. polished mirror for marine and sewer gas detection. Along with other models including a Fleissner-type singing methane detector, different size carbide safety lamps and surveyor’s safety lamp, Wolf also offered an intermediate size bonneted lamp called the “Junior” that was 10 in. tall to the top of the hook ring. The Wolf Safety Lamp Company of America was sold to the Mine Safety Appliance Company, a long-time sales agent, in 1965 and eventually, the Wolf line of lamps was dropped completely. See Moon, Mining Artifact Collector #9, pp 15-17 and Pohs, Miner’s Flame Light Book, pp 356-357) slides/Wolf Screw Lock.JPG