Original U.S. WWI M1917 SBR Gas Mask with Carry Bag Flintlocks The designation "2 inch" refers

The designation "2 inch" refers to the mortar barrel

we got this truly remarkable U

and damage from over a century of storage and neglect

Diameter: 3 inches

Original U.S. WWI M1917 SBR Gas Mask with Carry Bag Flintlocks The designation "2 inch" refersOriginal Item: Only One Available. Of the 5,250,000 gas masks of all types produced by the U. S. during the war, 1. 6 million of them were the improved version of the British SBR. This mask was officially known as the U. S. Corrected English Small Box Respirator or the U. S. Corrected English Model (CEM). Produced in six sizes (1 through 6) from January to March 1918, the CEM was one of the two most commonly worn American made gas masks used by the