Known as the world’s most valuable and rare stamp, this unique piece was produced during a stamp shortage in British Guiana. Only one copy is known to exist, discovered by a 12-year-old Scottish ...

These are the most valuable stamps from around the world. Value: $234,000 The British Board of Education didn't usually issue stamps using its popular moniker, and this sample from 1902 is an ...

Counterfeit stamps tend to be sold in bulk and discounted between 20 and 50 percent of their face value, according to the U.S. Postal Inspection Service. The Postal Inspection Service also advises ...