Original U.S. WWI M1917 SBR Gas Mask with Carry Bag Flags & Signs The central pad however is

The central pad however is missing

the regiment rested and received replacements

It has ALL MATCHING serial numbers

- Data label that reads:

Final Edition (date unknown)

Original U.S. WWI M1917 SBR Gas Mask with Carry Bag Flags & Signs The central pad however isOriginal 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