Helmet from personal collection. It belonged to the collector from Sevastopol, according to him the helmet was found in this city in the 1980s during construction works.
— 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