Lincoln pennies can be worth more than $300,000

A Lincoln penny recently sold for $300,000, so it's time to check your piggy bank.

In a recent video, coin expert Blake Alma advised that it's time to look through your pennies for a unique coin that could add an extra $300,000 to your wallet.

This relates to a specific penny from 1958.

You should be on the lookout for a doubling effect on the coin's outer frame near the top.

You should keep an eye out for the impact of "Liberty" and "1958" in addition to "In God We Trust."

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Because mint mistakes like this one are uncommon, coin collectors frequently look for them.

Only three examples of the penny are known, according to PCGS.

The grade and condition may affect the value as usual.