London - A mysterious letter has been sent to a museum official by someone claiming to possess a second World War Enigma encoding machine stolen last April. The machine, worth about £100,000, is one of only three remaining examples of the machine used by Nazi Germany to send top secret messages.
It was brought Britain from Germany after the war and stolen from Bletchley Park museum - the wartime Station X where decoding was carried out - near Milton Keynes. The letter said if the museum wanted the machine back, it would have to reimburse the author for the money paid for it.