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

You grab a handful of coins from your cup holder or the bottom of your purse without thinking twice. Just another stack of quarters for the laundry or the vending machine. Nothing special, right?

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. Each state received a specific quarter design during a program which ran from 1999 to 2008. However, during this time, some of the ...

Once known as the “Hobby of the Kings,” coin collecting is a global pastime open to anyone with an appetite for accumulation. Coins can be appreciated due to their artwork, their rarity or their ...

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 ...

Each state received a specific quarter design during a program which ran from 1999 to 2008. However, during this time, some of the 25-cent coins had errors or misprints. These engraved mistakes, ...