Original U.S. Vietnam War Helicopter Pilot Gentex SPH-4 Helmet - Size Extra Large Russian Issue Equipment 5mm holes drilled in the

5mm holes drilled in the body - one found just below the safety interrupter

Theodore Roosevelt and CVW-1 launched the initial strikes of Operation Enduring Freedom against al-Qaeda in Afghanistan from the North Arabian Sea

In 1752 it was designated as the 25th Regiment of Foot

Twice as many of the double barreled versions were made

The strap colors evolved with the fabric colors of the Musette Bag

Original U.S. Vietnam War Helicopter Pilot Gentex SPH-4 Helmet - Size Extra Large Russian Issue Equipment 5mm holes drilled in theOriginal 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, visor, microphone, and tint visor. The helmet is marked X Large This is a rare Late Vietnam War era original rare 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