Minting coins isn't exactly an exact science. Even though most coins are perfect and uniform, small mistakes can result in ...

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 ...

Since the government first started to circulate pennies, it has minted more than 300 billion, and today, we have about 150 billion in circulation. You could circle the Earth with them 137 times.