[ Home page | Web log ]
The pattern which is printed on modern European bank notes and is recognised by photocopiers which refuse to print it. See this mailing list posting for more information. To my irritation, I wasn't able to find this with Google -- apparently because the word I was searching for -- `photocopying' -- is hyphenated in the document....
This is all done with wwwitter.
Copyright (c) Chris Lightfoot; available under a Creative Commons License. Comments, if any, copyright (c) contributors and available under the same license.
Hosted and supported by