Fil:German microdots World War II Mexico Spain.jpg

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Beskrivelse

Beskrivelse	English: A NSA photo of microdots taped inside the label of an envelope. The envelope was sent by German spies in Mexico City to Lisbon during World War II (1939-45), but intercepted by Allied intelligence.
Dato	World War II (1939-45)
Kilde	https://www.nsa.gov/Portals/70/documents/about/cryptologic-heritage/historical-figures-publications/publications/wwii/cryptologic_aspects_of_gi.pdf
Opphavsperson	UkjentUnknown author

	This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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