According to info got by StampNews.com the world's rarest postal stamp, the 1856 British Guiana One-Cent Magenta, will go on display at the National Postal Museum starting in April, 2015.
The stamp will be displayed in the museum's William H. Gross Gallery for three years, the longest and most publicly accessible showing it has ever had, the Smithsonian said in a statement.
The stamp is the only surviving example of the British Guiana One-Cent Magenta. Printed in black ink on magenta paper, it bears the image of a three-masted ship and the colony’s motto in Latin: "We give and expect in return".
The one-cent stamp was sold by Sotheby's in June for $9.5 million, four times the price ever paid for a single stamp. Sotheby's said the postage stamp was the most valuable object by weight and size.
The anonymous buyer is lending it to National Postal Museum.
William H. Gross Gallery