Original U.S. Korean War US Navy Helicopter Crewman D-8 Flight Helmet by Bill Jack Scientific Instrument Co Martini-Henry Bayonets just the usual light staining

just the usual light staining from age

Loads of markings for a ton of research potential as well

Air Force Military Personnel Center

though there is some cracking at the ends

The stock is nicely checkered at the wrist and forestock

Original U.S. Korean War US Navy Helicopter Crewman D-8 Flight Helmet by Bill Jack Scientific Instrument Co Martini-Henry Bayonets just the usual light stainingOriginal Item: Only One Available. Now this is a rare example of a seldom seen early Korean War USN Helicopter Crewman D 8 flight helmet shell. This helmet was manufactured by Bill Jack Scientific Instrument Company some time in the late 1940s to early 1950s. There is extensive information online regarding Bill Jack and the JAHCO (Jack & Heintz Co) business he formed in 1940 with partner Ralph Heintz. After attempting a start up in Palo Alto