How much is a 1999 Pennsylvania quarter worth? If it has errors, it's worth hundreds (or even thousands) of dollars! In this 1999 Pennsylvania State Quarter Guide, we'll show you the value of your...

Did you know there's a 1999 Georgia quarter error worth $10,000?! That's just ONE of 5 types of errors you should look for on your Georgia state quarters. We'll help you determine if you have a...

Have an Oregon state quarter? Some Oregon quarters have errors worth lots of money! Here's what to look for & how much Oregon state quarter errors are worth.

If you have a 2008 Arizona quarter error coin, it could be worth $5... or more! Some Arizona quarters have an extra cactus leaf, some were struck off-center, some have die chips (raised metal chunks...

There are several kinds of errors on Wyoming quarters that are worth a lot of money! Here's a list of the Wyoming state quarter errors you should be looking for and what they're worth if you find one...

Some 2006 Colorado quarters have errors that make them worth a lot more than just 25 cents. In fact, some are worth $10 to $50... or more! Do you have a Colorado quarter with errors? Here are the...