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.

Though most state quarters are worth exactly 25 cents, a few rare releases and coins with unique misprints have sold for well ...

Starting in 1999, the U.S. Mint began a years-long program where they released aspecially designed quarter for all 50 states. It is widely lauded as the mostsuccessful coin program in the Mint's ...

The 50 State Quarters program ran from 1999 through 2008, and it remains one of the most collected coin series in American history. Most of those quarters are worth exactly 25 cents. A small number, ...