Original U.S. Korean War US Navy Helicopter Crewman D-8 Flight Helmet by Bill Jack Scientific Instrument Co Martini-Henry Bayonets when it was reissued with

when it was reissued with the Jeep Axe

0 in) long cylinder of cast iron

The outer side bears the scratched initials of W

The stock is nicely checkered at the wrist and forestock

yellow and black

Original U.S. Korean War US Navy Helicopter Crewman D-8 Flight Helmet by Bill Jack Scientific Instrument Co Martini-Henry Bayonets when it was reissued withOriginal 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