Prototype installation, with the hood pulled back, of TCTO 1F-106-674, dated 3/16/1962, designed to provide Nuclear Flash and Thermal Radiation Protection to the pilot. With the fully pressurized "space suit" and supersonic ejection seat filling up the cockpit, the modification was deemed impractical and almost impossible to use, thus the modification was cancelled and never installed. [From the Joe Sylvia's collection]