Testing specimen: v-shaped specimen in Baldwin UTM testing frame; labeled 4011; some lateral bending; "Fatigue of Rail Test" sign posted on far wall; duplicate of .3623, no date

Testing specimen: v-shaped specimen in Baldwin UTM testing frame; labeled 4011; some lateral bending; "Fatigue of Rail Test" sign posted on far wall; duplicate of .3623, no date, Item: 3624; Box: 6; Folder: 4.3. 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/74387 Accessed May 19, 2026.