Dayton Codebreakers
A story so important that it was secret for 50 years
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UDOLLI 2020
21 June 1943 6:03 pm
Message received 21 June 1943 at 6:03 pm
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Teletype messages, June 1943
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21 June 1943 6:03 pm
UDOLLI
Our class description is here!
UDOLII
on this site
10 most FAQs
By the Numbers…
US Navy Cryptanalytic Bombe
Joseph R. Desch
Op-20-G
Naval Communications Annex, 3801 Nebraska Avenue
Turing in Dayton
The Accumulator
Notes & Sources
Webmaster Debbie Anderson