This is an original late-WWII Mine Safety Appliances manufactured M1 helmet liner. It features blackened brass A-washers, dating the liner's production from mid-1944 to 1945. The Lapeer Fabricators Inc. manufactured khaki suspension is fraying in some spots, but remains intact. It's marked with its original owner's laundry number, "C-1181". It comes complete with an original headband and neckband. The exterior's original olive drab factory paint is in good condition. This helmet liner would display quite nicely when paired with a swivel loop helmet shell.