Original U.S. Vietnam War Era Named Gentex SPH-4 Helmet Helicopter Pilot With Helmet Bag and Flight Gloves - Size Extra Large U.S. Replica The combat force was to

The combat force was to be made up of three regiments

revealing the internals for maintenance and battery replacement

Condition wise

but each bears readable WWI Dates

HISTORY of H

Original U.S. Vietnam War Era Named Gentex SPH-4 Helmet Helicopter Pilot With Helmet Bag and Flight Gloves - Size Extra Large U.S. Replica The combat force was toOriginal Items: Only One Set Available. his 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 size X LARGE on the white label attached to the helmet shell, which also partially gives the order and stock numbers. The inside of the helmet is marked ARMSTRONG with no other information given. The