A hoard of Nazi artefacts including the only known copy of a memo announcing the death of Adolf Hitler have been uncovered from a sunken U-boat.The artefacts, which also feature Nazi cigarettes, secret dispatches from Nazi higher-ups, a rare enigma machine and even condoms, were uncovered in the wreckage on Merseyside. Hundreds of items have now been uncovered from U-Boat 534, after being under wraps for 80 years, which forms part of Birkenhead's U-Boat Story attraction.The U-boat was sunk by the RAF off the coast of a Danish island on Saturday, 5 May 1945. It was raised from the seabed...