Coal Cut by a Jeffrey Colmol Mining Machine   Save
Jeffrey Manufacturing Company Collection
Description: Example of patterns cut on the wall of a coal mine by a Colmol mining machine, 1950. This machine could cut and move up to 80 tons of coal per day. The Colmol was manufactured by the Jeffrey Manufacturing Company of Columbus, Ohio. View on Ohio Memory.
Image ID: AL01603
Subjects: Coal miners; Ohio Economy--Economy--Business
Places: Jeffrey Manufacturing Company Collection