Caption: "Image features a close-up view of defective bolts marked with the symbol 'Sumber 53,524.' The photograph is part of the Signal Corps photographer reco collection taken during World War One. The bolts are visibly damaged, highlighting the importance of quality control during military activities."

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Size: 8547px × 5771px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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