1856 British Guiana One-Cent Magenta (Obverse)

The Smithsonian’s National Postal Museum will display the world’s rarest postage stamp. Beginning in April 2015, the 1856 British Guiana One-Cent Magenta will be prominently displayed in the museum’s William H. Gross Stamp Gallery for a three-year period. The exhibition of the stamp will be the longest and most publicly accessible showing ever.

The world’s most famous and valuable stamp, the British Guiana One-Cent Magenta, is now on display that the Smithsonian’s National Postal Museum. Prominently showcased in the museum’s William H. Gross Stamp Gallery, the stamp will be on display until November 2017, the longest and most publicly accessible showing ever.

The Smithsonian’s National Postal Museum announces a special showing of the world’s most famous and valuable stamp—the British Guiana One-Cent Magenta—at the World Stamp Show–NY 2016. The special showing will take place May 28–June 3, 2016, at the Javits Center in New York City. Admission is free throughout all eight days of the show.