A massive, 80-foot diameter spherical, glass-like object was visually observed over the coast for an extended period by multiple witnesses. The object's presence was empirically confirmed via ground radar at RAF Manby. When Royal Air Force interceptors approached the target coordinates, the object rapidly departed, demonstrating situational awareness consistent with controlled flight. RAF Manby's radar logs were filed but never formally released, and the relevant file is believed to have been merged into the broader Air Ministry UFO archive later destroyed in routine purges. The case is cited in UK ufology as an early example of a coordinated radar-visual-intercept incident pre-dating the better-known Lakenheath-Bentwaters event of the same year.