| Name | "The Start of the Digital Revolution: SIGSALY" |
|
|---|---|---|
| Catalog ID | HCM1093 | |
| Year | circa 2006 | |
| Description | "Secure Digital Voice Communications in World War II" book, published by NSA. From National Cryptologic Museum, 8-18-2007. | |
| Added | 2007-12-05 12:00:00 (updated 2019-06-16 12:48:54) |