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 stamp depicting an inverted Jenny airplane has been sold for a record $2 million at a New York auction, making it the most expensive U.S. stamp ever sold. A 76-year-old New York man ...

The infamous Inverted Jenny, one of the most collectible stamps in the world, has set a new auction record for a U.S. stamp, with a $2 million sale at New York’s Robert A. Siegel Auction Galleries.