If you’ve ever come across an old stamp collection and wondered if it might be worth something, you’re not alone. Collecting ...

Arguably the most famous and valuable stamp in the world, the British Guiana 1-Cent Magenta has achieved near-mythic status. Issued in 1856 in what is now Guyana, this small, faded red stamp was ...

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 ...

Get your stamp book ready for the ultimate addition. This summer, Robert A. Siegel Auction Galleries is offering the William H. Gross Collection of United States Stamps. The organization is ...

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 ...

Known as the world’s most valuable and rare stamp, this unique piece was produced during a stamp shortage in British Guiana. Only one copy is known to exist, discovered by a 12-year-old Scottish boy ...