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:
Arthur Roberts shaftman on test drilling work at the Norris Dam site. NARA .tif Scope and content General notes Local identifier Tennessee Valley Authority NARAAuthor Hine Lewis Wickes Photographer File ArthurRoberts shaftmanontestdrillingworkattheNorrisDamsite NARA tif tif File ArthurRoberts shaftmanontestdrillingworkattheNorrisDamsite