Original U.S. WWII M3A1 Diaphragm Gas Mask with MIXA2 Filter dated 1944 and MIVA1 Gas Mask Bag Japanese Holsters This period was known as

This period was known as the "Porfiriato" period

We assume that the hanger was probably removed from the first scabbard when it was replaced

it ended up produced side by side until the end of the war

thin black bridle leather visor

and has been polished a bit to remove oxidation

Original U.S. WWII M3A1 Diaphragm Gas Mask with MIXA2 Filter dated 1944 and MIVA1 Gas Mask Bag Japanese Holsters This period was known asOriginal 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