
Jon Baddeley
Specialist Consultant Collectors, Science & Marine
Sold for £6,375 inc. premium
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The NEMA utilised a total of 10 rotors: 5 for enciphering the alphabet, and 5 paired rotors which give irregular stepping of the rotors. This was a marked improvement over the original German counterpart, Enigma. The present machine is understood to have once been kept in war-reserve storage, only to be issued if war broke out.