Original U.S. Navy Vietnam War Helicopter Pilot Gentex SPH-4 Helmet with Night Vision Goggle Mount Original Antique Guns The calculator took a short

The calculator took a short time to settle on a solution

with raised comb

surrounded by an inscription:

An excellent barely used example

Of heavy construction this was a serious weapon that could be taken ashore

Original U.S. Navy Vietnam War Helicopter Pilot Gentex SPH-4 Helmet with Night Vision Goggle Mount Original Antique Guns The calculator took a shortOriginal 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