M-112

From RadioNerds
Revision as of 14:47, 19 August 2025 by BinD (talk | contribs)
Jump to navigation Jump to search

The U.S. Army Signal Corps M-112 Cryptanalytic Device was one of the first official cryptanalytic devices developed for the United States Army in 1930. The 26 letters of the alphabet are printed on strips which slide up and down.

M112 crypto box.jpg


References

  • National Cryptologic Museum