Manufacturing errors might be annoying when it comes to most products, but they can be a massive moneymaker when it comes to collectible money. Errors increase the ...

A 1999 Georgia state quarter could be worth up to $10,000, according to a blog post from U.S. Coins Guide. The quarter’s high value is a result of several manufacturing errors. The biggest one ...

You never know when you might come across a valuable error coin, so it helps to know what to look for. Error coins can be divided into the following general ...