WW2 German M40 Helmet Size 64 Posted on 27 May, 2025 in german This helmet is a. Size is 64 based on measuring the outside circumference of the helmet. Pretty sure this is a Quist but the maker marking and lot number on the rear inside of helmet is difficult to read. « Pre WWII M35 Stahlhelm Used In Spanish Civil War German Made M35 Franco’s Army 1939 Dated German Helmet Liner withLeather/Rare Size 61 for 68 Shells/Very Nice »