This is one of the 20mm Cannon Shells fired by Mosquito II DD612, flown by my father (Group Captain R G Slade) on the night of 22-8-1942. My father and his navigator shot down a Dornier 217 E-4 U5+LP: ...
February 9, 1944. A single 20mm shell rips through Robert Hoover’s Spitfire, shearing off a wing and sending the fighter tumbling from the sky. Captured and sent to Stalag Luft I, his war seems over.