No size stamp on liner looks like 57 or so. Appears to have original liner rivets band etc. As well as 100% decals! Shows very little wear overall. The item "GERMAN WW2 M40 HELMET ET64 Replaced Chinstrap. Double Dutch Wolfsangle Decals" is in sale since Wednesday, August 15, 2018. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\Germany\Hats & Helmets". The seller is "shepdog58william" and is located in Paterson, New Jersey.