Ryan Somma
Ryan Somma
Hugo Koch Patent Filed September 18, 1920
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 15, 2010
Taken on January 1, 1980
Hugo Koch Patent Filed September 18, 1920
Taken at the National Cryptologic Museum, NSA.
Creative Commons photo courtesy of ideonexus, please feel free to use for your own purposes.
947
views
0
faves
0
comments
Uploaded on November 15, 2010
Taken on January 1, 1980