Bar specimens: view of 2 broken specimens; detailed label in image explaining strength, size, etc.; specimens classed as "C-1040 (plain carbon steel, 0.4% carbon) and A-7 (low carbon structural steel for bridges and buildings)", 1955

Bar specimens: view of 2 broken specimens; detailed label in image explaining strength, size, etc.; specimens classed as "C-1040 (plain carbon steel, 0.4% carbon) and A-7 (low carbon structural steel for bridges and buildings)", 1955, Box: 2; Item: 1044; Folder: 19.9. 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/71475 Accessed May 19, 2026.