Are your old coins and bills valuable ... could be worth as much as $3.50 if they have a certain state design, according to ...

State quarter errors can significantly enhance your coin collection's value. Find out the most notable errors and how to spot ...

Here are 20 rare state quarters worth additional value, according to Gainesville Coins, USA CoinBook and PCGS. Keep in mind that “error” coins — the ones primarily included on this list ...

Are your old coins and bills valuable ... could be worth as much as $3.50 if they have a certain state design, according to Coin Trackers. Ohio quarters marked with an S (produced in San Francisco ...