A hoard of Nazi artefacts, including cigarettes, condoms, encoded messages and even the only known copy of a memo announcing the death of Adolph Hitler, has been uncovered on a U-boat almost 80-years after it was sunk. 

U-boat 534 was sunk by the RAF off coast of a Danish island on Saturday 5 May 1945, but in was raised from the seabed in 1993, after which its contents were conserved and kept strictly under wraps - until now.