B&O Railroad: Martinsburg West Roundhouse (1866), Martinsburg, West Virginia, Blueprint, 1970

B&O Railroad: Martinsburg West Roundhouse (1866), Martinsburg, West Virginia, Blueprint, 1970, Box: 80, Item: 29. 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/155751 Accessed November 22, 2024.