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 ...

This past March it was announced that a Naples resident was selling a lucrative stamp collection owned by William H. Gross. The collection recently sold at auction for a total of $19,201,550. A single ...

No true philatelist would pass up an 1860s stamped Pony Express envelope, now valued at as much as $50,000. No wonder Rita Braver can find dedicated stamp collectors in all sorts of places: Captain ...