This image was acquired from
flickr. 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:
naraarcid u.s. national archives usnationalarchives lewis hine lewishine blackandwhite monochrome photo border text surreal outdoor drawing texture black and white Original Caption Rockdrillers working in lateral shaft at base of Norris Dam site October U.S. National Archives Local Identifier Photographer Hine Lewis Subjects