Before you head to the laundromat, you should look through the quarters you plan to spend. You may have a rare coin better ...

Others do it in hopes of making a profit. Unfortunately, not everyone’s going to come across a truly rare coin like the 1933 “Saint Gaudens” Double Eagle (last sold for almost $19 million).

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 ...

Before you head to the laundromat, you should look through the quarters you plan to spend. You may have a rare coin better suited to be auctioned off or artfully displayed than used to wash your ...

While most state quarters are worth their face value of 25 cents, there are some that have become valuable due to their rarity or unique characteristics. If you are interested in collecting state ...