This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
ARCING DRILL WHICH FEDERAL MINE INSPECTORS SAID WAS AGAINST REGULATIONS AND COULD NOT BE USED BY GEORGE WILSON IN HIS... NARA .tif Scope and content General notes Local identifier DA Environmental Protection Agency NARAAuthor Corn Jack Photographer File ARCINGDRILLWHICHFEDERALMINEINSPECTORSSAIDWASAGAINSTREGULATIONSANDCOULDNOTBEUSEDBYGEORGEWILSONINHIS