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:
PICTURE OF THE LONG WALL MINER WITH JACKS HOLDING UP THE CEILING TO THE LEFT AND THE TEETH OF THE MINER ON THE RIGHT.... NARA . Scope and content General notes Local identifier DA Environmental Protection Agency NARAAuthor Corn Jack Photographer File PICTUREOFTHELONGWALLMINERWITHJACKSHOLDINGUPTHECEILINGTOTHELEFTANDTHETEETHOFTHEMINERONTHERIGHT