This new book presents over seven years of research into the history of the M-1 helmet during World War II, and provides the most comprehensive examination of its development and production. All aspects of M-1 helmet production are covered including: the helmet body, the fiber liner, the plastic liner, the parachutist helmet, helmet camouflage, helmet modifications, helmet paint schemes, and toy helmets. Every production helmet version is presented in full color photographs, including detail shots and production markings. Also included are World War II era photographs of the helmet samples, helmet production, and helmets worn in training or in action. This book a valuable reference to both historians and collectors.