Inside view of a Miller type of Tissot mask with a cut side clarifying tube, used in chemical warfare research conducted by Fogler at the Chemical Warfare Service Research Division. This photograph was received from the division on July 12, 1918, with the description number 1260.

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

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