Elizabeth Stuart, Queen of Bohemia

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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

	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.
	This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:06, 27 November 2005		609 × 438 (51 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}}

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