Mechanical Drawings: Examples by C. Smecker, undated

Mechanical Drawings: Examples by C. Smecker, undated, Box: 101, Item: 261. 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/155985 Accessed January 08, 2025.