The Inverted Jenny is a famous misprint stamp from 1918 that features the Jenny plane—or the Curtiss JN-4, used to carry mail ...

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 ...

(CNN) — 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 ...

UNDATED (CNN Newsource/WKRC) - The rarest stamp known to still exist in the United States is set to go to auction and is currently expected to sell for millions of dollars. It's the 1868 One-Cent ...

If you've ever come across an old stamp collection and wondered if it might be worth something, you're not alone. Collecting vintage stamps isn't just a charming pastime-it can also uncover hidden ...

The 1868 One-cent Z Grill stamp is one of only two known surviving copies, and the only available to collectors. (Robert A. Siegel Auction Galleries) Famed bond manager Bill Gross is selling out of a ...

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 ...

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 ...