Add Yahoo as a preferred source to see more of our stories on Google. Peter Gudella via Shutterstock Minting coins isn't exactly an exact science. Even though most ...

The penny of 1988 is dull to look at initially. A mere old copper counterfeit coin. Some of these, however, contain errors which make them something much more ...

Some of the rarest and most valuable coins in U.S. history owe their worth to minting errors that slipped through unnoticed. Coins like the 1943 Copper Penny, struck in copper instead of wartime steel ...

A rare 1943 Lincoln Wheat penny struck in bronze instead of the standard wartime steel has sold for extraordinary sums, with top specimens valued over $1 million. These coins were created when ...

If you are a rare coin collector, you know that it’s not always the perfect coins that are the most valuable. There are many criteria that make a coin worth lots of money in today’s currency, as well ...

The 1974 Lincoln Cent is one of the most common pennies from the 1970s, but a handful of rare varieties and high-grade examples can make certain coins surprisingly valuable. While most 1974 pennies ...