This one is rare, because it was produced not in Finland, as many other M17 helmets, but in Russia - the top piece is not welded to main body, but pinned by 3 pieces. If you have a question, do not hesitate to contact me.The item "Original Russian WW1 WWI M17 1917 Sohlberg helmet, also used in WW2 WWII" is in sale since Sunday, May 19, 2019. This item is in the category "Collectibles\Militaria\WW I (1914-18)\Original Period Items\Russia".
The seller is "colonel_malino" and is located in Saint Petersburg. This item can be shipped worldwide.