![Early 1948-dated M9 Gas Mask with Black Butyl Rubber C48R1 Facepiece. When the M9 was adopted in 1947, early production runs used butyl as the faceblank material while natural rubber supplies were Early 1948-dated M9 Gas Mask with Black Butyl Rubber C48R1 Facepiece. When the M9 was adopted in 1947, early production runs used butyl as the faceblank material while natural rubber supplies were](https://i.redd.it/zvku1f3o19l31.jpg)
Early 1948-dated M9 Gas Mask with Black Butyl Rubber C48R1 Facepiece. When the M9 was adopted in 1947, early production runs used butyl as the faceblank material while natural rubber supplies were
![U.S. Army Spc. Courtney Natal dons her protective mask before firing an M9 pistol during the New York Army National Guard Best Warrior Competition at Camp Smith Training Site March 30, 2017. U.S. Army Spc. Courtney Natal dons her protective mask before firing an M9 pistol during the New York Army National Guard Best Warrior Competition at Camp Smith Training Site March 30, 2017.](https://c8.alamy.com/comp/KTT9DG/us-army-spc-courtney-natal-dons-her-protective-mask-before-firing-KTT9DG.jpg)
U.S. Army Spc. Courtney Natal dons her protective mask before firing an M9 pistol during the New York Army National Guard Best Warrior Competition at Camp Smith Training Site March 30, 2017.
![US M9A1 Field Protective Mask; size Large, made for and used by left-handed shooters; dated 2nd week of June, 1953. Manufactured by Firestone Tire and Rubber Company. A still sealed M9A1 tin US M9A1 Field Protective Mask; size Large, made for and used by left-handed shooters; dated 2nd week of June, 1953. Manufactured by Firestone Tire and Rubber Company. A still sealed M9A1 tin](https://i.redd.it/gb9qwg282fn51.jpg)
US M9A1 Field Protective Mask; size Large, made for and used by left-handed shooters; dated 2nd week of June, 1953. Manufactured by Firestone Tire and Rubber Company. A still sealed M9A1 tin
![My first American gas mask, an M9A1. It looks like it has been used in the past but I don't know where and what for. : r/gasmasks My first American gas mask, an M9A1. It looks like it has been used in the past but I don't know where and what for. : r/gasmasks](https://i.redd.it/ad0yt3m28kc71.jpg)
My first American gas mask, an M9A1. It looks like it has been used in the past but I don't know where and what for. : r/gasmasks
![M9A1 Field Protective Gas mask with anti dim cloth, dated 1953, Manufactured by Firestone : r/gasmasks M9A1 Field Protective Gas mask with anti dim cloth, dated 1953, Manufactured by Firestone : r/gasmasks](https://preview.redd.it/t0mwthocfjp41.jpg?auto=webp&s=97f6d9aa01460274e31ba0f04f355d8db8444692)