Very  rare  helmet m36,used by the Greek Army in ww2 with original liner and the Greek coat of arms stamped on it.
Size is not readable
Helmets with their original leather liner are very rare,usually you can find with post war plastic ones with no markings.
This specific one has the original leather one with stamp with the crown of the Kingdom of Greece and "Greek Army" written under it.
100% authentic,paint,liner,chinstrap.