M31 aluminum single band helmet liner size 68/60 by Werner Zahn 1937

Worn early M31 pattern German helmet liner. Early single band liner executed in alumium made by Metall-Lederverarbeitung W.Z. (Werner Zahn) in Bln.-Chburg 5 (Berlin), dated 1937. The leather itself is dry and has seen better days. The felt cushion band is missing. This liner is intented for a 68 sized steel helmet with a head size 60. It might not be in the best condition, but it's a very hard size to find in for an early liner.