Original U.S. WWI Experimental Navy M1917 Mark I Gas Mask in Canister - Mouth Canister Type - Rare Category_Flintlock Muskets and Rifles followed in 1944 by General

followed in 1944 by General William N

/ REBBELROTH / 1939

only possible with laminated steel

Showing only a minor wear

Original U.S. WWI Experimental Navy M1917 Mark I Gas Mask in Canister - Mouth Canister Type - Rare Category_Flintlock Muskets and Rifles followed in 1944 by GeneralOriginal Item. Only One Available. The Navy Mark I was one of the earlier masks made by the United States, not to be confused with the later optical Mark I made in WWII. Similar to the German Gummischutzmaske, the Mark I was issued in a metal canister. However, unlike the German Gummischutzmaske, the Mark I used a wide rubber flapper type exhale valve that protruded from the filter inlet stem. This is an extremely scarce gas mask, the first of this