The Lincoln Wheat Penny, valued at staggering prices from $870,000 to $1.7 million, is still in circulation, and a few fortunate Americans could be in for a hefty payout if they stumble upon one.

The right coin could turn out to be a financial windfall, making the search well worth the effort. Pennies, often overlooked ...

The combination of "copper" and "penny" might not seem like the best formula for valuable coins considering that you can find ...