A-14 US Army Air Force regulation flying oxygen mask with ANB-M-C1 type microphone. Size MEDIUM. Dated 12/44. Made by OHIO CHEMICAL Co. Complete with storage box, instructions and accessories. Excellent condition, pliable with strong rubber fastening harness. Standardized on July 1943 this mask was issued to Army Air Force, Navy and USMC pilots during WWII.

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