Here are 20 rare state quarters worth additional value, according to Gainesville Coins, USA CoinBook and PCGS.

The state quarters program, which ran from 1999 to 2008, inspired many new coin collectors, and some of those quarters are ...

Add Yahoo as a preferred source to see more of our stories on Google. PHILADELPHIA — Some rare U.S. state quarters are no longer worth just 25 cents. Collectors say a few special coins from the 50 ...

Add Yahoo as a preferred source to see more of our stories on Google. Once known as the “Hobby of the Kings,” coin collecting is a global pastime open to anyone with an appetite for accumulation.

A manufacturing error on the 1999 Georgia state quarter has increased the coin’s value, and some collectors are paying as much as $10,000 for the affected 25-cent ...