Production errors and unique background stories make some historic coins now worth way more than their face values. And holding on to them, including those in the list below, could mean increased ...

S. nickel, as well as one of the most valuable coins in the world. Only five 1913 Liberty Head nickels are known to exist, and surviving specimens are regularly auctioned for millions of dollars. For ...

Here are ten of the most valuable pennies to look for, as published by the site: A 1926-S Lincoln cent in mint condition with its red surface intact sold for $149,500 at auction in 2006, the list says ...

For a tiny circle of elite collectors, certain U.S. coins function more like blue-chip artworks than pocket change, routinely commanding seven- and even eight-figure prices. These ultra-rare pieces ...