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

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 ...

You might be sitting on a coin collection that's quietly losing potential worth while you read this. The 50-State Quarter program captured American hearts from 1999 to 2008, with roughly half the ...

Add Yahoo as a preferred source to see more of our stories on Google. A manufacturing error on the 1999 Georgia state quarter has increased the coin’s value, and ...

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 ...