US Navy Flight Helmet M-450-1 size 7 3/8

US Navy M-450 summer flying helmet in unlined light tan coloured cotton.  This example is fitted with pressed leather earcups and chinpad. The chinpad and associated buckles are both very good as are the inner velveteen pads, with earphones,  the cups accommodate a pair of Original Telephonics Corporation Type TH-37 receivers with a 1200 Ohms resistance and rubber wiring loom.