Undoubtedly, the rarest and most expensive German stamp ever sold at auction is the Baden 9 Kreuzer error stamp. The nitty-gritty of stamp collecting can be as ...

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 ...

51,000 were printed, and fewer than 150 are still around. The stamp is worth an estimated $547,464 adjusted for inflation ...

An ultra-rare U.S. postage stamp is going under the hammer this summer — and it may fetch as much as $5 million. Robert A. Siegel Auction Galleries in New York recently announced that it will be ...

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 ...

Many collectors today wonder if postage stamps are good investments. While some rare and historical stamps have increased in value over the years, the market can be very unpredictable. Factors like ...

The recent sale of a 1-cent Ben Franklin stamp for $4.4 million, the most expensive U.S. stamp ever sold, again raises for consideration the question, “Are postage stamps good investments?” Certainly ...