This is an original American M1 combat helmet, introduced in 1941 and used by the U.S. Army through World War II, the Korean War, and into the Vietnam era. The construction consists of a steel shell with rough olive-drab textured paint and a separate inner liner made of pressed fiber with webbing suspension and leather components. Characteristic features include swivel chinstrap bales, a web chinstrap with metal hardware, and a leather sweatband inside the liner.

The photos clearly show service wear: paint loss along the rim, preserved textured camouflage finish on the steel, and aging of the leather elements of the suspension. The liner is made of compressed fiber with the typical web crossband adjustment and a leather forehead pad.

The M1 helmet is one of the most iconic symbols of the American soldier during World War II, later conflicts in Korea and Vietnam, and remains a highly sought-after collectible piece of military history today.