Closeup of Mine Safety Devices as Shown at a Kentucky State Mine Safety Contest Held in Benham, near Cumberland 10/1974
October 8, 2009 by
Filed under mine safety
Image taken on 1974-01-01 00:00:00 by The U.S. National Archives.
October 8, 2009 by
Filed under mine safety
Image taken on 1974-01-01 00:00:00 by The U.S. National Archives.
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