This helmet and several others were found in a large hole near the German positions in the Gorodishche district of Volgograd (former Stalingrad). Also in this hole were found spare parts from Kar 98k and MG34
— 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