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If the file has been modified from its original state, some details may not fully reflect the modified file.
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259:: This only applies to original works of the Federal Government and not to the work of any individual
157:, where it is identified as an improved version that was introduced in March 1944. See other photos in
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of
Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see
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during World War II. The woman on the right is inputting ciphertext into an analog of the
Japanese
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date QS:P,+1944-00-00T00:00:00Z/8,P1319,+1944-00-00T00:00:00Z/9,P1326,+1945-00-00T00:00:00Z/9
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Category:PURPLE analog, improved (National
Cryptologic Museum)
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153:. The machine, or one like it, is on display at the
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Commons is a freely licensed media file repository.
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542::
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
