Mentioned on Antiques Roadshow Militaria specialist Mark Smith explores the mystery of a briefcase containing items that belonged to Second World War pilot Hubert Henderson, and unearths a remarkable story that takes in mistaken identity and the Great Escape Spitfire AA810 - Restoring Sandy's Spitfire Scot's secret mission Spitfire found Casualty Flight Lieutenant (Pilot) GUNN, ALASTAIR DONALD MACKINTOSH Service Number 60340 Died 06/04/1944 Aged 24 Royal Air Force Volunteer Reserve Twice Mentioned in Despatches Son of James Turner Gunn, F.R.C.S., M.B., Ch.B., and Adelaide Lucy Frances Gunn, of Auchterarder, Perthshire. INSCRIPTION: MAY HE REST IN THY PEACE AND AWAKE TO A JOYFUL RESURRECTION Buried at POZNAN OLD GARRISON CEMETERY Location: Poland Number of casualties: 448 Cemetery/memorial reference: 8. D. 7. See cemetery plan