Testing specimen: View of four men wearing hard hats around a wide steel beam. One man is using a power tool on the beam while another man takes notes on a clipboard., 1959

Testing specimen: View of four men wearing hard hats around a wide steel beam. One man is using a power tool on the beam while another man takes notes on a clipboard., 1959, Box: 7; Item: 4354; Folder: 3.5. 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/75288 Accessed May 19, 2026.