Add Yahoo as a preferred source to see more of our stories on Google. Here’s something for serious stamp collectors only. This summer, philatelists will have a chance to snag the rarest US stamp ever: ...

America’s most valuable postage stamp sold for nearly $4.4 million on Friday. The 1868 one-cent “Z” Grill was sold as part of the collection owned by “Bond King” Bill Gross, who co-founded asset ...

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 ...

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 ...