Helmet size - 62. This damaged Wehrmacht helmet M40 and 22 other WW2 German and Romanian helmets was found at east bank of the Don river near city Kalach-na-Donu (Stalingrad area). All these helmets were found in the place where the bloodshed battle was during Operation Uranus.
— 10 USD by Russian Post
— 25-40 USD by courier service EMS
— 30-40 USD by Russian Post
— 40-60 USD (depends on customer's country) by courier service EMS
What is the difference between Russian Post and EMS courier service? Read here - link