This is an original WWII German M1931 helmet liner system. The leather liner is a size 56; to be paired with a size 64 helmet shell. Its zinc band showcases a 1943 production stamp by Schuberth Werke, K. G. Braunschweig. The liner comes complete with its original drawstring and leather chinstrap. The chinstrap exhibits a grey-painted steel buckle and has been shortened down to 8 holes. This would be an ideal liner system for an M40 or M42 helmet. Split pins sold separately.