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Pathfinder Ad Nov 1913 The Colliery Engineer | PATHFINDER AD IN NOV 1913 THE COLLIERY ENGINEER - The early Pathfinder lamp with the hook penetrating the water tank and fixed steel reflector was advertised by Hughes Bros. from April 1912 to Nov 1913. This was the first carbide cap lamp marketed by Hughes after nearly twenty years of selling safety lamps. | Original Image |
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