The Dambusters - No 617 Squadron Royal Air Force. A commemorative cover produced in memory of Air Marshal Sir Harold "Mick" Martin KCB, DSO*, DFC**, AFC. This rare, special edition cover has been personally signed by five distinguished 617 Squadron aircrew, all of whom flew on the famous "Dambusters" raid in May 1943. Sergeant Fred Sutherland (RCAF) (front gunner in Lancaster AJ-N which attacked the Eder dam) Squadron Leader John "Les" Munro CNZM, DSO, QSO, DFC, JP (RNZAF) (pilot in Lancaster AJ-W, scheduled to attack the Sorpe dam) Sergeant Ray Grayston (Flight Engineer in Lancaster AJ-N which attacked the Eder dam) Squadron Leader George "Johnny" Johnson MBE, DFM (bomb aimer in Lancaster AJ-T which attacked the Sorpe dam) Flight Sergeant Grant McDonald (Rear Air Gunner in Lancaster AJ-F which attacked the Sorpe dam) We have ONLY 1 left of these historic and rare signed covers.