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Ryan Somma

Revolving Drum Cipher

Prototype by A.G. Damm 1920s

 

Taken at the National Cryptologic Museum, NSA.

 

Creative Commons photo courtesy of ideonexus, please feel free to use for your own purposes.

1,308 views
2 faves
0 comments
Uploaded on November 14, 2010
Taken on January 1, 1980

Revolving Drum Cipher

Prototype by A.G. Damm 1920s

 

Taken at the National Cryptologic Museum, NSA.

 

Creative Commons photo courtesy of ideonexus, please feel free to use for your own purposes.

1,308 views
2 faves
0 comments
Uploaded on November 14, 2010
Taken on January 1, 1980
Some rights reserved