The helmet was found in the Kirovsky district, the city of Volgograd, in a place called Bald Mountain. 30 helmets were dropped into one hole. This happened when after the war the battlefields were cleaned, everyone was thrown into the pit and buried.
— 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