This is a MK-1 US Army Westinghouse made and stamped high pressure helmet liner (stamped interior left of center) with very minimal damage on the front left edge of the helmet. (Small crack) shown in pic 8. Made during wartime production 1943 - 1944. Complete with all leather strapping and webbing, only thing missing is the front buckle clip. Excellent condition for its age and great piece of collectible militaria. ***PLEASE NOTE last pic depicts a repair to the front leather strap. The leather is expectedly brittle and actually broke while taking the original pictures. OFFERS WELCOME.