Filtering by: Creator caniff, milton, 1907-1988 Remove constraint Creator: caniff, milton, 1907-1988 File Format image/tiff Remove constraint File Format: image/tiff Place (Topic) united states Remove constraint Place (Topic): united states Subject oil wells--equipment and supplies Remove constraint Subject: oil wells--equipment and supplies Time Period (Topic) 1940s (1940-1949) Remove constraint Time Period (Topic): 1940s (1940-1949)