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 value of collectibles because a ...

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

Because there are so few of them, coins with minting errors can be worth multiple times their face value. The scarcity of them means coin collectors are willing to fork out hundreds or even ...