No 18 Sqn RAF FDC commemorating 25th Anniversary of the Berlin Air Lift 26th June 1948. Cover flown in and signed by Pilot Fg.Off. M.A. McQuillen and Crewman V.H. East. Of 18 Sqn Wessex Mk 2 No XR 516 (BE) from RAF Gutersloh to GAF Wunstorf, franked BFPS 1401.  This cover has a damaged by water cache, a RARE piece