Could you have a penny worth way more than one cent? Or a quarter worth a small fortune? A 1943 bronze Lincoln cent, a 1944 ...

What would happen if the U.S. got rid of the penny? It wouldn't be easy because there are 420 billion in circulation.

Collectors hunting for valuable coins don’t have to reach back a century or more to find ... by the die (or design stamp) on either the front (obverse), reverse, or both sides.