The '80s produced a quartet of coins that are rare, coveted and potentially valuable. Keep an eye out in your couch cushions ...

Here are 20 rare state quarters worth additional value, according to Gainesville Coins, USA CoinBook and PCGS.

Each state received a specific quarter design during a program which ran from 1999 to 2008. However, during this time, some of the 25-cent coins had errors or misprints. These engraved mistakes, ...

State quarters may seem like ordinary pocket change, but certain rare varieties, minting errors, and top-grade examples have become sought-after collectibles with strong investment potential. While ...

Movies like “Wall Street” made the 1980s synonymous with money — but coins are often left out of currency conversations about the decade of decadence. Up Next: Do You Have a $2K Quarter? Look Closely ...