This is a Czechoslovakian Model 1953 helmet from the Cold War era (1947-1991). The helmet features a green shell and is similar in design to the helmets used by the Soviet Union.1 On the inside is a leather liner and chinstrap. This helmet was the most exported helmet of any in the Warsaw Pact countries (1955-1991).2

Czechoslovakia Cold War
Infantry Helmet 1953
CZH-11-0309

Description by Samuel Grubb