M35 helmet was found during digging in the steppe near the town of Millerovo (Rostov region). The helmet was found next to a Soviet warehouse with ammunition. Helmet size-64
— 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