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Long Patent pic1
Long Patent Marking
Long Patent pic2
Long Design Patent
Long Lamp Patent
  M & O.JPG - M & O - Hard to find tin face lamp with brass collar, marked M & O, adjustable vent tube brass on cap (U.S. patent #884,191 April 7, 1908 by Charles Murray, Treverton, PA, who assigned one-half the patent to Charles O’Connor thus the M & O name), marked on cap PAT. APRIL 7 & MAY 26, 08, unfired condition  
M & O Marking
Murray and O'Connor Patent
McMasters Ad 1895
McMasters pic1
McMasters pic2

M & O | M & O - Hard to find tin face lamp with brass collar, marked M & O, adjustable vent tube brass on cap (U.S. patent #884,191 April 7, 1908 by Charles Murray, Treverton, PA, who assigned one-half the patent to Charles O’Connor thus the M & O name), marked on cap PAT. APRIL 7 & MAY 26, 08, unfired condition Download Original Image
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