Got spare change lying around? You might want to check for a quarter from 1999 that could be sold for thousands at an auction ...

While most quarters are worth exactly 25 cents, a rare error of this quarter has fetched five figures at auction.

Errors increase the value of collectibles because a limited number go into circulation before it is spotted and corrected. This Georgia quarter is a big one.

As with just about any asset, a coin’s value is determined by its market demand. This means that coins in short supply often see higher demand — and higher values. With coins, supplies are limited ...

The 1943 penny errors represent some of the most fascinating and valuable mistakes in American numismatics. During World War II, the U.S. Mint switched from copper to ...

The “Faceless Bat” error represents the most famous mistake on 2020 American Samoa quarters, where debris or grease between the die and planchet obscured the ...

Most people never think twice about the change jingling in their pocket. Yet tucked inside ordinary coin rolls and forgotten ...