Stores reference 22c/1390. Size 2. 1954 dated. An extremely rare early blue cloth inner flying helmet. The Type 'F' was the first helmet designed for use with the MK.1 bonedome and predates the later and far more common Type 'G'. The blue cloth helmet shell is in very good condition bar light fading/soiling. Fully wired with loom, receivers and NATO plug (some deterioration of sheathing to the receivers). The avionics have been tested and do work but this does not indicate suitability for flight. Good (soiled) soft leather earpads. A good '+' used example of this rare early variant. Stock code H24092.