About TK-1(china)/Gsh-4MS(Russia). It is an old stock and has a little musty smell. You can put it in the sun for several days to remove it. (some countries in South America need more time). Please request revised invoice when you are finished shopping.
I will send you a combined invoice. The item "High Altitude Militaria Aviation Mig-21 Fighter Pilot Flight Helmet" is in sale since Wednesday, December 30, 2020. This item is in the category "Collectibles\Militaria\Militaria (Date Unknown)\Air Force". The seller is "felicia567" and is located in China,shanghai. This item can be shipped worldwide.