An interior view of a gas mask showing the Arlam eye-pieces. This photograph is part of the Pyrotechnic Research conducted by Lamb in the Research Division of the Chemical Warfare Service during World War I. It was taken on July 12, 1918, and received under the subject number 54668.

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Size: 8441px × 5741px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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