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Cleaning Coins

While looking for rare coins in my spare change jar, I found the easiest way to check a coin’s value online, what coins to look for in change, and the best U.S. coins to keep.

Grading a mint state coin can be difficult in a world with so many possible grades for a mint state coin. This guide should help you in better assigning a grade to your uncirculated coin.

Wondering how to clean coins? Have some old coins that are in serious need of a cleaning?... Only low-grade extremely dirty coins will benefit from a good cleaning. Medium- and high-grade coins will actually go down in value if you attempt to clean them, so use your best judgment. Here are the best ways to clean coins, while doing the least damage to the coin itself.

You've probably heard you shouldn't clean coins because it lowers their value. Here's the proper way to clean coins without damaging them + 4 ways NOT to clean coins.

Damaged U.S. coins are not valuable. Some damaged coins have been cleaned while others are bent or have holes. See photos of various types of coin damage.

Little-known facts & trivia about U.S. pennies that, as a collector of coins, you should definitely know! How many of these 50 penny facts did you know?

Dark Coin

Got any dark toned coins or discolored coins? See which dark coins are rare and valuable error coins. Also, find out how much your dark coin is worth here!

Things To Never Do With Coins

We all make mistakes with our coins. Here are 4 common errors that many coin collectors have made. If you're new to coin collecting, don't do these things!

cleaned coins

Want to be able to tell if a coin has been cleaned or not? Here's how professionals identify cleaned coins and you can too. Plus 3 SAFE ways to clean coins