A soldier is holding an Aero oxygen gas mask, manufactured by the Western Electric Company. This mask includes clasps for attaching it to helmets. The photograph was taken on Dec. 18, 1918, and the image is part of the collection of American military activities during World War One.

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Size: 8341px × 5620px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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