Oilwick Lamps/Hardsocg Black Diamond Marking

Oilwick Lamps

Hardsocg Black Diamond Marking.JPG - HARDSOCG BLACK DIAMOND - Tin face lamp with double spout, marked HARDSOCG’S BLACKDIAMOND inside diamond shape on font (The Hardsocg Manufacturing Co. was an icon of mining equipment manufacturers and thanks to an excellent article in Eureka # 1, pp 13-16 by Dave Johnson, the history of the company is an interesting story. At one time, Hardsocg was the largest single manufacturer of mining tools and supplies in the world. As noted by Johnson, it's almost impossible to collect mining artifacts and not have something in your collection by Hardsocg. After years of blacksmithing and working in the coal mines of Iowa, in 1878 Martin Hardsocg started his company in Avery, IA to manufacture mining tools. In 1885, he moved the company to Ottumwa, IA and in 1891, the Hardsocg Manufacturing Co. was incorporated with him as president. Within a few years the company had dramatically expanded and owned and operated other companies specializing in mining equipment. In 1947, the Hardsocg Manufacturing Co. and all its holdings were sold to Cardox Co. of Chicago which continued to operate until 1969 when the company ceased operations.)

Hardsocg Black Diamond Marking | HARDSOCG BLACK DIAMOND - Tin face lamp with double spout, marked HARDSOCG’S BLACK DIAMOND inside diamond shape on font (The Hardsocg Manufacturing Co. was an icon of mining equipment manufacturers and thanks to an excellent article in Eureka # 1, pp 13-16 by Dave Johnson, the history of the company is an interesting story. At one time, Hardsocg was the largest single manufacturer of mining tools and supplies in the world. As noted by Johnson, it's almost impossible to collect mining artifacts and not have something in your collection by Hardsocg. After years of blacksmithing and working in the coal mines of Iowa, in 1878 Martin Hardsocg started his company in Avery, IA to manufacture mining tools. In 1885, he moved the company to Ottumwa, IA and in 1891, the Hardsocg Manufacturing Co. was incorporated with him as president. Within a few years the company had dramatically expanded and owned and operated other companies specializing in mining equipment. In 1947, the Hardsocg Manufacturing Co. and all its holdings were sold to Cardox Co. of Chicago which continued to operate until 1969 when the company ceased operations.)

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