International Business Times |
World's Most Valuable Stamp, The 'Mona Lisa' Of Stamps, Estimated To Sell For …
International Business Times World's Most Valuable Stamp A Sotheby's staff removes the British Guiana stamp from its case at Sotheby's in Manhattan, New York June 9, 2014. The stamp, being called the world's most famous, is estimated to sell for $10-20 million when auctioned on … |
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