You don't need to be a coin collector to have piggy banks stashed around your house filled with quarters, dimes, nickels or ...

In the middle of 1982, the U.S. Mint changed the planchets (the blank disk from which the coin is made) from striking copper-alloy to copper-plated zinc for cost reasons. However, it was difficult ...

This 1984 $1 coin was struck on 10 cent blank error, making it a rare and valuable find. · Source: Roxbury's Auction House/Getty An “exceptionally rare” $1 ...

But a few bronze planchets, a blank coin with no design, may have been left behind, resulting in extremely rare and valuable 1943-S bronze pennies. In 2016, one of these pennies sold at auction ...