Christie's is selling a German three-rotor Enigma cipher machine, from around 1939, as part of its natural history sale next month. The code machine, estimated to be worth £40,000-£60,000 was widely used during World War II to encrypt and decode messages sent between the military and its commanders.
Its interchangeable rotors made a total of 15 billion billion possible readings for each character. This was considered too complex to be broken, but due to the efforts of Alan Turing and a team of analysts at Bletchley Park, the mechanism was cracked, enabling the allies to read all secure messages
More top news
Darren February broke into Cowell's home as he and his family slept and his security guard used the toilet.
Pilots taking off or landing at the west London airport were targeted 151 times in 2016.
All private hire drivers must sit the test at a cost to the driver of £180 unless they can prove they have a qualification in English GCSE.