For this holiday season, the U.S. Postal Service is piloting a new way to manage its stamp inventory, and it all started with a frustrated husband who couldn’t find the Christmas stamps his wife ...

51,000 were printed, and fewer than 150 are still around. The stamp is worth an estimated $547,464 adjusted for inflation ...

Inside a little store, tucked away in a Costa Mesa strip mall, two sisters walk in on a recent Tuesday morning, seeking some advice. What should they do, they asked the owners of Coast Philatelics, a ...