The helmet was found to the West of the suburbs of Stalingrad (now Volgograd) is a village Gorkovskiy. The helmet was found near the place where in 1942/43 there was a large German field medical hospital
— 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