An curved arrow pointing right. If you look closely at a quarter or a dime, you'll see tiny grooves all along the edge. They were put there for a very important reason. The process is called ...

Pennies, you either love them or hate them. They were the first denomination of coins struck in the U.S. and they've been around a long time. They've been around since 1793 when they were 100% copper.

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 ...