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David Hamer
Enigma expert and BP scholar - this page is a stub


  1. Enigma: Actions Involved in de 'Double Stepping' of the Middle Rotor 1
    David H. Hamer, January 1997. Cryptologia, Volume XX, Number 1.

  2. G-312: An Abwehr Enigma
    David H. Hamer, January 2000. Cryptologia, Volume XXIV, Number 1.
  1. Reproduced here by kind permission from the author.

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