Original U.S. Vietnam War Helicopter Pilot Gentex SPH-4 Helmet Dated 1971 - Size X-Large Crimean War ) From production number 4274

) From production number 4274

which is stuck inside at present

This example was made by the Orbea Brothers in Eibar

The cuff style collar has two “Scottish Thistle” insignias and the front has all eight British General Service buttons

Original U.S. Vietnam War Helicopter Pilot Gentex SPH-4 Helmet Dated 1971 - Size X-Large Crimean War ) From production number 4274Original 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 (speakers detached), clear 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