Monongahela River, West Virginia, Lock #7, Lock Walls Detail, Engineering Drawings, 1923 June 1-1928 August 21

Monongahela River, West Virginia, Lock #7, Lock Walls Detail, Engineering Drawings, 1923 June 1-1928 August 21, Box: 77, Item: 7. 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/155729 Accessed September 28, 2024.