WWII German Secure Tactical Field Phone
Rare German WW II era kryptophone.
This was a standard German field phone with a basic voice encryption ...
Post WW II Soviet Made Low Probability of Intercept Encoder
World War II Security Posters
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Calvin Brown
Calvin Brown started in the National Security Agency in 1951 as a tabulating machine operator, ...
Charles Matthews
Charles Matthews, a lifelong Washington resident, became the first student at Hilltop ...






