This is an original WWII leather liner strap. The leather is somewhat dry and has slightly conformed to the shape of a helmet's brim. The green painted steel buckle is the early variety with the flat lip, dating the strap's production from late-1942 to mid-1943. It features United Carr marked rivets. This would be an ideal strap for a helmet liner with non-painted steel A-washers (including Hawleys and St. Clairs).