With coins, supplies are limited either because they are very old, were minted in very limited supplies, or contain errors or other distinctive features that set them apart. Errors are common ...

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 ...

You must be keen-eyed, however, as these sought-after coins must harbour specific minting errors that collectors are desperate to snap up. An expert, known online as the Coin Collecting Wizard ...

If you've ever tossed spare change into a jar or forgotten about a few coins in the back of your wallet, you might want to double-check. A rare error coin recently ...

The short version is, higher-value coins typically contain errors caused by double dies or defective planchets. One thing to keep in mind about modern pennies is that 2009 was a special year in ...