An excellent example of a genuine complete Vietnam War era U.S. M1 helmet. The U.S. M1 helmet was made by McCord in the 1950's and was reissued in the 1960's and has a heat stamp number: M 336 B, the chinstrap has anchor markings to the metalwork. The genuine U.S. P64 liner is in excellent shape and has a rarer early sunflower pattern liner with ink DSA 100-1917 (Defense Supply Agency) contract markings to the suspension webbing and was made in December 1965. The genuine U.S. sweatband is also DSA ink contract marked and is dated 1969, and has a genuine DSA contract marked nape strap dated 1965. The genuine U.S. Mitchell cover retains its original vivid colours and is DSA contract marked dated 1969, around the outside of the cover is a genuine U.S. post-Vietnam War elastic helmet band. A very nice complete M1 helmet.