Original U.S. Vietnam War Unissued Helicopter Pilot Gentex SPH-4 Helmet Dated 1971 - Size Regular Headgear today along the Northern border

today along the Northern border with Belgium

•- Adam Koressel 2003918 U

and can still be removed

The 91st Infantry Division

the front rod trigger must be "set" by the rear trigger during the process of cocking the lock

Original U.S. Vietnam War Unissued Helicopter Pilot Gentex SPH-4 Helmet Dated 1971 - Size Regular Headgear today along the Northern borderOriginal Item: Only One Available. This is a United States Helicopter Flight Helmet type SPH 4 made by Gentex. The helmet is in overall excellent, complete condition with the liner, headset, tinted visor and boom microphone. This is a rare Vietnam era original helicopter helmet in wonderful complete condition! The Sound Protective Helmet 4 (SPH 4) is a derivative of the US Navy SPH 3 and was used by the US Army since 1970. The SPH 4 is a single visor