Original U.S. WWII M3A1 Diaphragm Gas Mask with MIXA2 Filter dated 1944 and MIVA1 Gas Mask Bag Japanese Military Maps The optics are still clear

The optics are still clear

The pistol measures almost 16" in overall length

- Ring with green enamel 4th Infantry Division Ivy insignia

Fort Leavenworth

Original U.S. WWII M3A1 Diaphragm Gas Mask with MIXA2 Filter dated 1944 and MIVA1 Gas Mask Bag Japanese Military Maps The optics are still clearOriginal Item: Only One Available. This is a very nice example of one of the last types of gas mask that the United States fielded in WWII. The M1 Design had first come about in 1921 as an improvement of the M1919 gas mask, developed at the end of WWI. It then went through several improvements, with the M1A2 being introduced in 1934, and remaining the standard U. S. Gas mask into the early years of WWII. However the delicate "bladder" under the mask