Original U.S. WWII M2-10A1-6 Lightweight Optical Gas Mask Sealed in Repack Box - Repacked July 1953 U.S. Artillery and the wooden plug has

and the wooden plug has fallen out

- Bombing Tables

Another 400 Saint-Chamond tanks were manufactured from April 1917 to July 1918

The rear interior of the apron has a stamped manufacturer's code and size: ckl64 over heat lot 0746

and only minor runner wear

Original U.S. WWII M2-10A1-6 Lightweight Optical Gas Mask Sealed in Repack Box - Repacked July 1953 U.S. Artillery and the wooden plug hasOriginal Item. Only One Available. This is a great sealed repacked M2 10A1 6 Lightweight Optical Gas Mask used during World War II. In the late 1930s and early 1940s, the United States Military saw a need for optical respirators. Most in trial failed but one design saw use the M1 Army Optical series. The M1 optical was very similar to the Navy Diaphragm Series the only difference being the canister being rimmed on the M1, and the M1 having optical