Original U.S. Vietnam War Helicopter Pilot Gentex APH-5 Helmet by Sierra Engineering Company Ancient in fact 5 know styles

in fact 5 know styles are known by collectors to exist and this two rivet type with double brass wires and single marked grip is among the hardest to find

London E15 3JA

the Medical Department replaced some cancelled items advantageously

There is a brass plaques attached to the frame stating:-

Original U.S. Vietnam War Helicopter Pilot Gentex APH-5 Helmet by Sierra Engineering Company Ancient in fact 5 know stylesOriginal Item: Only One Available. This is a Vietnam War era United States Helicopter Flight Helmet type APH 5 Helmet manufactured by Sierra Engineering Company in size large. The helmet is in overall excellent complete condition with the liner, headset, boom mic, and clear visor. The helmet is maker marked by Sierra Engineering Company and is a size large. This is a rare Vietnam era original rare helicopter helmet in wonderful complete condition! The