An aviator is shown holding a boxed Type Dreyer aviator's oxygen apparatus. The apparatus includes high-pressure tubing and a "y" connection with a control box underneath. It was manufactured by the Julius King Optical Company. The photograph was taken on December 18, 1918, and is part of Signal Corps record number 3021. This image is not for publication and is intended for official use only. It corresponds to Aero Order #20348 by the Army Signal Corps.

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

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