U.S. Army MIAI Training Gas Mask
The U.S. Army MIAI Training Gas Mask used a molded rubber facepiece with blue/green plastic parts, MV type exhale valve, and its filter mounted directly to the chin. As the Army stopped using Roman numerals, the nonclementure of this mask was later changed to M2A1. The first example was made by Firestone in 1941, and the second example was made by Acushnet in 1941.
Similar masks in my collection: U.S Army M2A1 Service, U.S. Army M3-10A1 Lightweight, U.S. Army M4-10A1 Lightweight, U.S. M8 Snout Type
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