Hauling Cars by Electric Motor, 1000 Ft. Below Surface

Front:
HAULING CARS BY ELECTRIC MOTOR 1000 FT. BELOW SURFACE.

Back:
8 PUBLISHED BY THE SABOLD-HERB CO., PHILADELPHIA, PA. MADE IN U. S. A An innovation in mining-electricity is slowly con- quering steam and replacing the mine mule and is just -beginning to be used. A-43265 AMERICAN