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First Pathfinder Ad April 1912 Mines and Minerals | FIRST PATHFINDER AD APRIL 1912 MINES AND MINERALS - This first ad for the Pathfinder lamps, two hand lamps and an early cap lamp that featured a hook penetrating the water tank and a fixed steel reflector, was introduced by Hughes Bros. in the April 1912 edition of Mines and Minerals (courtesy of Tony Moon) | Original Image |
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