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 ...

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 ...

An ultra-rare stamp depicting an inverted Jenny airplane has been sold for a record $2 million at a New York auction, making it the most expensive U.S. stamp ever sold. A 76-year-old New York man ...

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 ...

Bond investor Bill Gross just broke an auction record in the stamp world, raking in $10 million in a single day. The top lot, which fetched $737,500, was the unique block of the 24-cent 1869 Pictorial ...

In June, New York’s Robert A. Siegel Auction Galleries will offer what it is billing as the most valuable U.S. postage stamp, an extraordinarily rare 1868 one-cent “Z-grill” stamp featuring Benjamin ...