Here's what to do—and not do—when cleaning collected coins. Chalk it up to the excitement of having my own money for the first time, but when I was a kid, I loved cleaning all of the coins collected ...

Add Yahoo as a preferred source to see more of our stories on Google. Credit: New Africa/Shutterstock Credit: New Africa/Shutterstock You know those pennies, nickels, dimes, and quarters in your ...

The first rule of coin collecting is: DO NOT CLEAN YOUR COINS. This is the most important piece of advice for any collector, new or old. Serious collectors and experts agree that most coins should ...

Tiny flaws can sink a coin’s value fast. Learn which details collectors spot instantly and why seemingly valuable coins often ...

Thanks for the hint on cleaning coins. However, please tell the folks not to try it with the new "gold" dollars. I tried to clean up a few, and in less than 15 minutes, the cleaner proceeded to remove ...

Small flaws, big loss: Cleaning, scratches, filed rims, or artificial toning can make a valuable coin nearly worthless, according to numismatic experts. Tight 2026 market: With rare coins in short ...