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The One-Cent Magenta: Inside the Quest to Own the Most Valuable Stamp in the World: Barron, James: 9781616205188: Amazon.com: Books
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The Mona Lisa of Stamp Collecting - Rediscovering the British Guiana-One Cent Magenta | Stamp Auction
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One-cent magenta enters spotlight at Gibbons HQ as 'pieces' sold via Showpiece - Canadian Stamp News
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British Guiana 1c Magenta, better known as the rarest stamp in the world Jigsaw Puzzle by Thomas Pollart - Pixels Puzzles
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$9.5-Million British Guiana One-Cent Black on Magenta Stamp is World's Most Expensive Object by Weight - TechEBlog
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