So here's what's new at Cottonridge Vintage:
This cute little canvas bag is from WW II. It's stamped "US Optical Gas Mask M1" on the front.
I'm not sure what the symbol represents.
There are the neatest black metal snaps that close it securely.
On the inside of the flap it's stamped "M5 E.A. Lot 63".
It has a canvas shoulder strap that can be adjusted with metal hardware.
You can see from the photos it has a few small age holes. They look like they are burns from sparks to me. There are also some places where someone wrote on it in ink. They're pretty faded now but are still visible (enlarge the photos to see them).