Original TK 4 A CHINESE AIR FORCE HIGH ALTITUDE FLIGHT HELMET with Air Force Fighter Pilot Anti Gravity Aviation Flight Suit BKK-6M

This is a TK-4 high altitude helmet, used by Chinese airforce, it has been copied after Soviet Gsh-9,it comes complete with working headset and sun visor, neck seal and all oxygen connectors, Helmet features positive pressure visor seal,helmet was not used,only a display object in a collection , include is a original Soviet/Russian/USSR BKK-6M MiG Fighter Pilot Flight Suit in very good condition, I have found no holes, zippers all work, etc. ,