Ryan Somma
Ryan Somma
Simplified NCB Cipher
Concentric Ring Design Prototype 1920s
Taken at the National Cryptologic Museum, NSA.
Creative Commons photo courtesy of ideonexus, please feel free to use for your own purposes.
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Uploaded on November 14, 2010
Taken on January 1, 1980
Simplified NCB Cipher
Concentric Ring Design Prototype 1920s
Taken at the National Cryptologic Museum, NSA.
Creative Commons photo courtesy of ideonexus, please feel free to use for your own purposes.
1,113
views
0
faves
0
comments
Uploaded on November 14, 2010
Taken on January 1, 1980