Testing specimens: Six vertical metal beams ordered by height; labeled A-21, A-22, A-31, A-32, A-41, A-42 from left to right, 1954

Testing specimens: Six vertical metal beams ordered by height; labeled A-21, A-22, A-31, A-32, A-41, A-42 from left to right, 1954, Folder: 21.16; Item: 4132; Box: 6. Negatives and Photographs of Fritz Engineering Laboratory Tests and Events, SC Photo 0013. Lehigh University Grant Projects. https://archivesspace.lib.lehigh.edu//repositories/7/archival_objects/75042 Accessed May 19, 2026.