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Two men working with a drill. Title written on recto margin. Written on verso: "Widow Maker."
Air drill of Missoula copper mine
Series III, Box 1, Folder 50, #1869. 12.7 x 17.145 cm.
Amistad Research Center ( http://www.amistadresearchcenter.org/ )
Physical rights are retained by the Amistad Research Center. Copyright is retained in accordance with U.S. copyright laws.