A one-cent postage stamp from 1868 is expected to become the most expensive U.S. stamp ever sold when it heads to auction in June. Known as the “Z-grill,” the stamp is the most-valued piece of what ...

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: ...

(CNN) — 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 ...

The “Z-grill” is likely to go for the highest price ever paid for a U.S. stamp when it is auctioned in June. By James Barron Good morning. It’s Monday. We’ll find out why a 1-cent postage stamp could ...

If you've ever come across an old stamp collection and wondered if it might be worth something, you're not alone. Collecting vintage stamps isn't just a charming pastime-it can also uncover hidden ...

If you’ve ever come across an old stamp collection and wondered if it might be worth something, you’re not alone. Collecting vintage stamps isn’t just a charming pastime—it can also uncover hidden ...