Image:Zygalski sheets (perforated sheets).jpg

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Description	Demonstration of Zygalski_sheets (perforated sheets) at Bletchley Park, photographed by Toby Oxborrow.
Source	http://www.flickr.com/photos/oxborrow/37527502/in/set-828575/
Date
Author	Toby Oxborrow
Permission (Reusing this image)	This file is licensed under Creative Commons Attribution ShareAlike 2.0 License.

[edit] Licensing

This file is licensed under Creative Commons Attribution ShareAlike 2.0 License (cc-by-sa-2.0). In short: you are free to share and make derivative works of the file under the conditions that you appropriately attribute it, and that you distribute it under this or a similar cc-by-sa license.

This image, which was originally posted to Flickr, was reviewed on December 1st, 2006 by the administrator or trusted user Dodo, who confirmed that it was available on Flickr under the above license on that date.

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