United States Department of the Army, U. S. Corps of Engineers, Monongahela River Locks No. 7 and 8, Greensboro, Greene County, Pennsylvania, Blueprints, 1924 February 18

United States Department of the Army, U. S. Corps of Engineers, Monongahela River Locks No. 7 and 8, Greensboro, Greene County, Pennsylvania, Blueprints, 1924 February 18, Box: 109, Item: 289. Institute for the History of Technology and Industrial Archaeology Records, A&M 3936. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/156013 Accessed November 23, 2024.