Original U.S. Korean War Air Force Type P1A Flying Helmet with MS-22001 Oxygen Mask Knives & Daggers so the original buttstock cartouche

so the original buttstock cartouche is not legible

and the perfect color shade (unlike most on the market)

The tin is finely engraved on brass name plate as follows:

Mortimer of London

The only item to be cancelled early 1944

Original U.S. Korean War Air Force Type P1A Flying Helmet with MS-22001 Oxygen Mask Knives & Daggers so the original buttstock cartoucheOriginal Item: Only One Available. As seen in the permanent collection of the Smithsonian National Air and Space Museum which can be found at this link. This helmet was officially designated; Helmet, Flying, Protective, Type P 1A, United States Air Force. The oxygen mask MS22001 can also be seen in the permanent collection of the Smithsonian National Air and Space Museum which can be found at this link. This was the first type of hard helmet mass