[FYI] Antiques man guilty of Enigma charge

[Hadmut Danisch]

> The BBC article stated that it was a particular model of 4-rotor
> enigma, of which there are only three known.

There are many versions and variatons of the Enigma,
e.g.

Crypto-variations:

- three or four wheels
- number of wheels coming with the enigma
  (wheels could be changed, normally they
  came in an external box with up to 8 wheels.
  selection of wheels was part of the key)
- connections within the wheels
- construction of the wheel (1 or 3 "carry hooks")
- with or without plugboard
- 26 or 28 characters

Technical variations:

- with or without external display
- kind of power supply

Equipment variations:
- kind of wooden box
- kind of manual/instructions
- does it come with a codebook?
- kind and color of painting

Historical differences:
- commercial or military version
- how is it/the box labeled
- whom did it belong to
- what was it used for
- date of manufactoring
- for which encryption/key changing protocols
  was it used for

Hadmut








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