The helmet was found on the top of Mamaev Kurgan, during the construction of the temple in 2006. It has been in the collection all these years, as a souvenir from memorable places.
— 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