A policeman at Buckingham Palace holds the gate open so that a duck and her ducklings, from nearby St. James’s Park, can leave the palace forecourt. (Photo by Douglas Miller/Keystone/Getty Images). May 1964
codebreakers - the final secret. A forgotten photograph found in a desk drawer has cast light on the secretive world of the female codebreakers who operated the world's first electronic computer used to crack Nazi messages during the Second World War.