A rare 1944 four-rotor M4 Enigma cipher machine, considered one of the hardest challenges for the Allies to decrypt, has sold at a Christie's auction for £347,250 ($437,955). The winning bid for the ...

A masters' student at the University of Cambridge, Hal Evans, has successfully built the first fully functioning replica of a cyclometer – a machine built in the early 1930s by Polish mathematicians ...

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A rare Enigma machine — a German gadget that encoded secret messages during World War II — is up for auction. The device is unique, even among Enigma machines. That's because it has a German ...