The helmet was found in Demyansk, in a place called, the hills of the Hump. This place is shown on the map. The name of the soldier is established, he died precisely in this place
— 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