Author agreed to license this photograph under the terms of the GFDL after an email exchange with en:User:Matt Crypto
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Captions
Photographic closeup of a single rotor from the inside of the Enigma encoding machine.
{{Information| |Description = An Enigma machine rotor, showing the side with flat electrical contacts. The turnover notch is visible on the left of the rotor. |Source = [http://www.ilord.com/enigma.html], uploaded in english wikipedia on 16. Feb. 2005 by