This is an original early-WWII U.S. M1 helmet set. The McCord manufactured fixed loop helmet shell's heat stamp of 221 dates the helmet's production to July 1942. It retains its original field repaint, cork texture, and khaki chinstraps. The chinstraps exhibit the early cast brass buckle, carried over from the M1917A1 helmet. The buckle showcases an interesting flaw, a portion of brass left over from the casting process is still attached to the buckle. The chinstrap as well as the helmet's interior are marked with the laundry number "P-2047". The helmet has recently been outfitted with an exceptionally rare Mine Safety Appliances manufactured helmet liner. M.S.A. received the very first contract for high pressure helmet liners on February 4, 1942. The contract at the time was for only 12,000 liners, compared to the 1,000,000 for both Inland and Westinghouse. This is one of M.S.A.'s earliest-produced helmet liners. It features parkerized steel A-washers and a first pattern rayon suspension, dating the liner's production to mid-1942. Two snaps are unfortunately tearing from the rayon suspension. The liner comes complete with an original Johnson & Johnson manufactured neckband and an interestingly marked size 7 8/8 rayon headband. The liner's exterior retains remnants of its original olive drab factory finish.