Original U.S. Vietnam War Era APH-5 Helicopter Pilot Flying Helmet by Sierra Engineering Company - Size Medium Century 82-inch caliber

82-inch caliber

and I'd light up that cigarette and

The Stielhandgranate 24 contained 165 grams of explosives

though it is a bit worn and has a partly dull finish

Light grain on blade is visible on the blade flat (ji)

Original U.S. Vietnam War Era APH-5 Helicopter Pilot Flying Helmet by Sierra Engineering Company - Size Medium Century 82-inch caliberOriginal Item: Only One Available. This is a solid example of a Vietnam War APH 5 Flying Helmet, as used by all branches of service during the Vietnam War. This Helmet appears to have been very well used, and repainted multiple times during its period of service. Has a functional clear visor as well as boom mic and issued hearing protection. Size is a MEDIUM and overall condition is very good. There is an original manufacturers label is still present