A mule coin is an error coin that has 2 designs not intended to be on the same coin. A mule coin has an obverse (heads side) design and a reverse (tails side) design that wouldn't ordinarily go...

Check out 5 of the biggest coin mistakes -- coins that failed to catch on with the public -- that the United States has made.

The first coin of any coin series is always among the most collected, so it's no surprise that first-year coins are tops on many coin collectors' want lists!

While most counterfeit coins are easy to spot -- due to improper weight, color, even design details -- the truth is there are many good copies that have fooled some of the most seasoned coin...

Native American coins have formed an integral part of America's circulating currency since 1859. Here's more about Indian Head pennies, Buffalo nickels, and U.S. dollar coins which feature Native...

The proof sets for 2009 are the largest they have ever been. Each set has 18 coins and 4 lenses.