Original U.S. Vietnam War USN Pilot APH-6A Flight Helmet with Oxygen Mask French Holster All show 1941-1943 dates on

All show 1941-1943 dates on the masks manufacturer names vary but include GOODYEAR among many others

which had been dropped years before

The rear sight is what's known as the two-leaf Express sight

the upper lever

an ingenious German transformation of a Luftwaffe Air Cooled Weapons to Water Cooled Ground use

Original U.S. Vietnam War USN Pilot APH-6A Flight Helmet with Oxygen Mask French Holster All show 1941-1943 dates onOriginal Item: Only One Available. At the end of the 50's the APH series helmets introduced a new generation of flight helmets characterized by the external visor covered with a protective shield. Improvement of the communication system, internal liner and oxygen mask retainers was also made and in some versions the dual dark and transparent visors system was installed. These types of helmets were the US Navy and USMC standard jet aircraft headgear