Manufacturing errors might be annoying when it comes to most products, but they can be a massive moneymaker when it comes to ...

There are a significant number of rare coins, with some printing deficiencies or that are part of specific mintings that make ...

The value of a 1999 Georgia State Quarter has been estimated at up to $10,000 due to errors made while the coin was being minted. This quarter is the fourth coin in the 50 State Quarters Program.

Each state’s quarter featured an image representing ... While perfect quarters can fetch a tidy sum at auction, coins with errors can also be valuable because few usually exist.