The Dam Busters 65th Anniversary. 2008 GB Buckingham Covers BCSP19 Limited Edition Cover. Front Gunner of Lancaster AJ-N for "Nut" (Knight's Crew) during the famous dambusters raid of May 1943. Rear Gunner of Lancaster AJ-F for "Freddie" (Brown' crew) during the famous dambusters raid of May 1943.