Vintage US Military M-1951 field cap in olive drab cotton, dated May 1953. This authentic Korean War era headgear features a fold-down wool-blend earflap lining for cold weather protection. Designed to be worn alone or under a helmet, it includes a structured bill and internal stamps detailing the Waldman Mfg Co. contract and material composition of 80% wool and 20% cotton for the lining. A rugged piece of Americana history perfect for collectors or vintage enthusiasts.