Number A engineers at American University in Washington, , are seen working on camouflage techniques during World War One. The engineers use a miniature model (5387) and photograph it from a height to assess the effectiveness of different camouflage methods. They also retouch the negatives with different colors to determine the most effective camouflage colors under various conditions.

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Size: 7982px × 6303px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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