An early enigma was constructed sight unseen based on
   encrypted intercepts, in 1932 I believe.
   [1]https://en.m.wikipedia.org/wiki/Marian_Rejewski
   [2]https://en.m.wikipedia.org/wiki/Cryptanalysis_of_the_Enigma

   On July 15, 2019 11:34:34 PM UTC, jim bell <jdb10987@yahoo.com> wrote:

   They stole the machine, I believe.

   On Mon, Jul 15, 2019 at 14:50, John Newman
   <jnn@synfin.org> wrote:

   The Polish cryptologists don't get nearly enough credit
   for cracking enigma. Not to say Turing was a dummy or
   anything, but he had a hell of a head start.
   On July 15, 2019 7:02:40 PM UTC, "\0xDynamite"
   <[3]dreamingforward@gmail.com> wrote:
   >Alan Turing:  homosexual, but not gay.
   >
   >Boom.  And like that I struck the head of the cogniscente....
   >
   >
   >
   >On 7/15/19, jim bell <[4]jdb10987@yahoo.com> wrote:
   >>  I would say that it must have been frustrating for such a genius to
   >be
   >> stuck in a world with such primitive devices and processes, but
   >really,
   >> everyone is stuck in the same position.                    Jim Bell
   >>
   >>    On Monday, July 15, 2019, 07:17:04 AM PDT, John Young
   ><[5]jya@pipeline.com>
   >> wrote:
   >>
   >>  [6]https://www.bbc.com/news/business-48962557#share-tools
   >>
   >>
   >>

References

   1. https://en.m.wikipedia.org/wiki/Marian_Rejewski
   2. https://en.m.wikipedia.org/wiki/Cryptanalysis_of_the_Enigma
   3. mailto:dreamingforward@gmail.com
   4. mailto:jdb10987@yahoo.com
   5. mailto:jya@pipeline.com
   6. https://www.bbc.com/news/business-48962557#share-tools