Talk:Clarkson, Maryland

External links modified
Hello fellow Wikipedians,

I have just modified 1 one external link on Clarkson, Maryland. 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/20140518050030/http://www.postalmuseum.si.edu/statepostalhistory/Maryland_Post_Offices.pdf to http://www.postalmuseum.si.edu/statepostalhistory/Maryland_Post_Offices.pdf

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Cheers.— InternetArchiveBot  (Report bug) 22:30, 25 November 2016 (UTC)