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Old 08-30-17, 06:17 AM   #5
Von Due
Sea Lord
 
Join Date: Jul 2012
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Worth a visit if you are interested in ciphers, broken or unbroken
http://www.cryptomuseum.com/index.htm

One German WW2 cipher that was not broken, to public knowledge
http://www.cryptomuseum.com/crypto/s.../t43/index.htm
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