This original WWII helmet liner headband was manufactured by the Metropolitan Shoemakers, Inc. Both the leather and HBT fabric are in absolutely superb condition. It features the 'double wire' buckle variation, first introduced in early-1942 and later replaced by the standard buckle in mid-1942. This would be an ideal headband for a helmet liner with non-painted steel A-washers (including Hawleys and low-pressure liners).
Early-WWII M1 Helmet Liner Headband (Double Wire)