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 reissued in the 1960's it has a heat stamp number: M57A, the chinstrap has anchor markings to the metalwork, with rarer bullseye maker marked bale connectors. The genuine U.S. P64 liner is in excellent shape and was made by the Westinghouse Electric Co, early type liner and has a DSA (Defense Supply Agency) contract number 'DSA-1-8668' on the suspension webbing, this dates the liners manufacture to 1965. The genuine U.S. sweatband is also DSA ink contract marked 'DSA-100-233' and is also dated 1965. The nape strap is genuine U.S. made in the 1960's with faded markings. The genuine U.S. Mitchell cover retains its original vivid colours and has a contract number 8027 that dates its original manufacture from late 1964 to early 1965, around the outside of the cover is a genuine U.S. Vietnam War era elastic helmet band with vivid ink markings. A very nice complete mid-sixties era example M1 helmet.