NEW YORK (CBSNewYork) -- The Smithsonian is now home to the world's rarest stamp worth nearly $10 million. The One-Cent Magenta has been hidden from view for a significant part of its more than ...

Despite great expectations, the British Guiana One-Cent Black on Magenta stamp got licked in a much anticipated auction this morning. The diminutive wisp of paper was expected to set a new world ...

A 1-cent postage stamp from a 19th century British colony in South America has become the world's most valuable stamp - again. Sotheby's says the 1856 British Guiana One-Cent Magenta sold Tuesday at ...

Here’s something for serious stamp collectors only. This summer, philatelists will have a chance to snag the rarest US stamp ever: the 1868 one-cent “Z-grill.” Interested? It’ll cost you (more than) a ...

NEW YORK -- A 1-cent postage stamp from a 19th century British colony in South America has become the world's most valuable stamp - again. The 1856 British Guiana One-Cent Magenta sold Tuesday at ...

A one-cent postage stamp from 1868 is expected to become the most expensive U.S. stamp ever sold when it heads to auction in June. Known as the “Z-grill,” the stamp is the most-valued piece of what ...

An inside look at the obsessive, secretive, and often bizarre world of high-profile stamp collecting, told through the journey of the world's most sought-after stamp. When it was issued in 1856, it ...

Those tiny squares of paper we stick on envelopes hold secrets that would surprise even the most curious minds. From the world's first postage stamp that ...

NEW YORK – A 1-cent postage stamp from a 19th century British colony in South America has become the world’s most valuable stamp – again. The 1856 British Guiana One-Cent Magenta sold Tuesday at ...