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File:CCM-rotor-unit.jpg

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Source: US Navy operating instructions, May 1944. Provided online by Richard Pekelney/Historic Naval Ships Association:
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work of the federal government of the United States
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Index

File
File history
File usage
Global file usage
Metadata
File:CCM-rotor-unit.jpg
CCM-rotor-unit.jpg
Wikimedia Commons
description page there
You can help
SIGABA
http://www.hnsa.org/doc/crypto/ecm/index.htm
archive copy
Wayback Machine
U.S. Navy
work
U.S. federal government
public domain
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.
depicts
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copyright status
public domain
applies to jurisdiction
United States of America
determination method
work of the federal government of the United States
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media type
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