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 ...

A quarter is one of those coins that still gets respect in America. That's mainly because of its face value (25 cents) but ...

That's because rare state quarter errors can give these coins a higher value. Some can be worth thousands, so grab your ...