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 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 postage stamp that started it all is going under the gavel. The coveted 18th-century rarity, known as the Penny Black, was the world’s first postage stamp and represents the very dawn of social ...

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 ...

While investment quality stamps have a steady history of appreciation, their value at any one point in time is fairly well known. It is therefore important for someone buying stamps as an investment ...

NEW YORK - A 1-cent postage stamp from a 19th century British colony in South America is poised to become the world's most valuable stamp -- again. The 1856 British Guiana One-Cent Magenta could bring ...

A collection of rare stamps which have been collecting dust in an attic for more than 100 years are now set to fetch at least a quarter of a million pounds at auction after being discovered. The 35 ...

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 ...