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

6. The Proof Coin Pops Finally, we have the proof coin errors. Proof coins are typically struck for collectors, and they usually have a mirror-like finish. But sometimes, these coins can have ...

Minting coins isn't exactly an exact science. Even though most coins are perfect and uniform, small mistakes can result in error coins that are super valuable and ...