The photograph shows a front view of a Tissot mask suit, mask, and hood, which were part of the mechanical research conducted by Clark in the Chemical Warfare Service's Research Division. The photo was taken by Eco on July 12, 1918, with the description number AU and was received from the Research Division of the Chemical Warfare Service.

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Size: 8484px × 5809px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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