Original U.S. Korean War US Navy Helicopter Crewman D-8 Flight Helmet by Bill Jack Scientific Instrument Co Martini-Henry Bayonets 0 in) long cylinder of

0 in) long cylinder of cast iron

just the usual light staining from age

In excellent condition with no discernible damage anywhere

when it was reissued with the Jeep Axe

UK where all the earliest Vickers Guns were made

Original U.S. Korean War US Navy Helicopter Crewman D-8 Flight Helmet by Bill Jack Scientific Instrument Co Martini-Henry Bayonets 0 in) long cylinder ofOriginal 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