Original U.S. Navy Vietnam War Helicopter Pilot Gentex SPH-4 Helmet with Night Vision Goggle Mount Italian Flags The original factory grind marks

The original factory grind marks can be seen in areas of the hollow ground blade

4 is a perspective view of the canteen

so no sizing is available

Established by Frederick William in 1813 for gallantry in action

14th Air Force commenced joint operations in the China theatre

Original U.S. Navy Vietnam War Helicopter Pilot Gentex SPH-4 Helmet with Night Vision Goggle Mount Italian Flags The original factory grind marksOriginal Item: Only One Available. This is a United States Navy Helicopter Flight Helmet type SPH 4 made by Gentex. The helmet is in overall good complete condition with the liner, headset, visor, microphone, and single dark tinted visor. The helmet is maker marked by Gentex and is a size medium. The helmet is covered reflective tape and features a rare NVG (night vision goggle) mount. The Sound Protective Helmet 4 (SPH 4) is a derivative of the US