U.S. Army M1A2

The U.S. M1A2 Service Gas Mask was made of molded rubber covered in stockinette.  The air from the hose was directed across the eyepieces, helping to defog the lenses with each inhalation.  These masks were made at Edgewood Arsenal, Maryland in 1937 and declared obsolete in 1944.

Similar masks in my collection:  Davis Type M-1, YorkCo Smoke & Ammonia Mask