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United States SIGABA (ECM Mk II) cipher machine.
Source: US Navy operating instructions, May 1944. Provided online by Richard Pekelney/Historic Naval Ships Association: http://www.hnsa.org/doc/crypto/ecm/index.htm archive copy at the Wayback Machine
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This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 13:09, 27 November 2005 | | 456 × 298 (21 KB) | Matt Crypto | United States en:SIGABA (ECM Mk II) cipher machine. Source: US Navy operating instructions, May 1944. Provided online by Richard Pekelney/Historic Naval Ships Association: http://www.hnsa.org/doc/crypto/ecm/index.htm {{PD-USGov-Military-Navy}} [[Ca |
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