This M-1 liner was manufactured by the Firestone Tire and Rubber Company during World War II (1939-1945). It features a sergeant first class insignia on the front over a dark green paint finish. The brim is painted red with a white boarder. Although it is a WWII type liner, it was painted during the early post-war period.

Country: United States	War Period: World War II
Garment Type: Infantry Helmet	Year Made: 1942 — 1988
Manufacturer: Firestone Tire & Rubber Company
Identification: USH-506-1211