Machine Doubling vs. Double Die Coins - I can help you determine whether your coin has machine doubling or is a doubled die. See the differences between these types of error coins, examples of...

U.S. coin errors and varieties can be confusing to tell apart. How are variety coins and error coins different? Why does it matter? What are these unusual coins worth? Here's everything you need to...

Have a blank coin with no heads and no tails? Here's what blank planchet error coins are worth, how they're made, and why these coins are so valuable.

Do you have any damaged coins or coins with an excessive amount of wear? These are generally called cull coins. Not only are they relatively easy to find -- they're also cheap coins to buy! Here's...

Your weird looking coins might be error coins! Here's how to tell what's a legit error coin from the U.S. Mint (like the rare 1990 penny, valuable doubled die coins, and bubbled coins) and what's an...

Coin folders and coin albums each have their following, and each have their own sets of pros and cons. Be sure you take into account which type of needs you have as a coin collector before you go out...