![Original U.S. WWI M1917 SBR Gas Mask with Carry Bag named to USGI in 3 – International Military Antiques Original U.S. WWI M1917 SBR Gas Mask with Carry Bag named to USGI in 3 – International Military Antiques](https://www.ima-usa.com/cdn/shop/products/ONSV3496__10.jpg?v=1595598944)
Original U.S. WWI M1917 SBR Gas Mask with Carry Bag named to USGI in 3 – International Military Antiques
JPEO for Chemical, Biological, Radiological and Nuclear Defense - #ThrowbackThursday: First U.S.-Produced Gas Mask (L), First Improved Gas Mask for Field Use (C), and Primary World War I Gas Mask for U.S.
![Finally have an SBR!! I've wanted one since I was twelve and just discovering history as something I'm interested in : r/gasmasks Finally have an SBR!! I've wanted one since I was twelve and just discovering history as something I'm interested in : r/gasmasks](https://preview.redd.it/zrmeum1z47g41.jpg?width=640&crop=smart&auto=webp&s=02a34e9c80ec9a323ec93de56320e6c361f41b78)