Errors increase the value of collectibles because a limited number go into circulation before it is spotted and corrected.

Curious about alternative investments like valuable quarters? Find out how to invest in the different asset classes today. While most quarters are worth just 25 cents, some can be worth much more due ...

An overflowing change jar is a sign that your coins need a new home. This can mean moving your spare quarters and dimes to a bigger jar; or, even better, checking to see if you have any valuable coins ...

As with just about any asset, a coin’s value is determined by its market demand. This means that coins in short supply often see higher demand — and higher values. With coins, supplies are limited ...

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 ...

While most coins from the 1990s are still worth face value, certain rare examples from that decade have become numismatic ...

The JFK Half Dollar, first minted in 1964 to honor President John F. Kennedy after his assassination, remains a popular coin among collectors and investors. While many of these coins were produced for ...