Helmet M35 were found North of the city of Stalingrad (now Volgograd) in 2016. The helmet was found in arroyo in the dugout. On the helmet was scratched the inscription (hard to see)
— 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