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: ...

A block of rare postage stamps, found hidden in a cupboard, could be worth up to £200,000 when it is sold at auction. The Penny Blacks, the world's first type of adhesive postage stamp, were ...

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 ...

Stamp collecting has been a popular hobby since the 1850s. Because of this, you'll find stacks of stamps in stellar condition at estate sales, in thrift shops, and elsewhere. This is great, because ...

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 ...