Talk:Geometric magic square

External links modified
Hello fellow Wikipedians,

I have just modified one external link on Geometric magic square. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added archive https://web.archive.org/web/20141111231833/https://www.macaupost.gov.mo/Philately/?lang=en-us to https://www.macaupost.gov.mo/Philately/?lang=en-us

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Cheers.— InternetArchiveBot  (Report bug) 06:19, 13 October 2017 (UTC)