Original U.S. WWII Rare Unissued Hawley Paper M1 Helmet Liner with Rayon Suspension Royal Air Force Yokusan Sonendan

Yokusan Sonendan

- Copy of the book Colt and It's Collectors where it is featured on page 278

and it emits the characteristic high-pitched "flash" type noise of the photo multiplier tube

or February 1941

3 - Paul Ford – Tan Jacket # 7822

Original U.S. WWII Rare Unissued Hawley Paper M1 Helmet Liner with Rayon Suspension Royal Air Force Yokusan SonendanOriginal Item: Only One Available. This is an excellent unissued example of a rare Hawley pressed paper M1 Helmet liner. They were only issued in very small numbers during the early days of World War Two. Their structural deficiencies were quickly noted, and the replacement "low pressure" and later "high pressure" liners were put into planning and production shortly after. The Hawley liners were however all that was available during the earliest days