The helmet was found East of the village Vertyachiy (Stalingrad region) in the field in combat positions. Helmet was at the bottom of the trench, among the sheets of iron (presumably from the stove)
— 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