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 ...

Stamps feel almost novel today, but they aren't that old of an invention. The first American stamps weren't issued until 1847, but it wasn't long before people grew fascinated by the different colors ...

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 ...

The most valuable rare stamp in the world is the British Guiana 1c Magenta. The stamp was auctioned in 2014 and sold for $9.48 million, though that price tag dipped considerably when it was auctioned ...

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 ...

For those passionate about the history and significance of stamps, investing in stamps can be more than a fulfilling hobby, offering substantial long-term returns. While stamp collecting and investing ...

The “king of hobbies” is changing. Once the domain of hobbyists trying to complete their collections, stamp collecting has shifted to investors seeking individual collectible stamps worth money. With ...

Donald Sundman, president of the Mystic Stamp Co., has traded a rare and valuable stamp -- an obscure "Z-grill" -- for a block of airmail error stamps from 1918 worth ...