This is an original pre-WWII German M1931 helmet liner and chinstrap system. The leather liner is a size 56; to be paired with a size 64 helmet shell. Its reinforced aluminum band showcases a 1938 production stamp by Schuberth Werke, K. G. Braunschweig. The R. Larsen, Berlin chinstrap was also manufactured in 1938. The leather components have deteriorated, making this an ideal liner system for an M35 helmet in equally rough condition. Split pins sold separately.