Original U.S. Vietnam War Era APH-5 Helicopter Pilot Flying Helmet by Sierra Engineering Company - Size Medium Century though it is a bit

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

with a gilt chinstrap

but they later moved to other hotels in Saigon

82-inch caliber

The exterior of the helmets shows very well with much gilding still remaining on the mounts

Original U.S. Vietnam War Era APH-5 Helicopter Pilot Flying Helmet by Sierra Engineering Company - Size Medium Century though it is a bitOriginal 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