Your Lincoln penny could be worth $66,000 - the exact 'reverse strike' detail to look for
A PENNY that features a dime look on the reverse could be worth tens of thousands of dollars.
Rare coin-focused channel Treasuretown profiled a notorious 2001-D error penny to its nearly 57,000 followers in a recent video.

While the 22-year-old coin looks normal on the front, or obverse, the reverse has the same design as the Roosevelt dime.
This is a 'mule' error, which occurs when it is struck with another coin's design.
One example, of the 2001 penny with this error sold for $66,000 in a 2022 auction.
"In the long history of the U.S. Mint, only a few dozen mules are known, and many are unique," reads a description of the coin on Heritage Auctions.
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And the 2001-D penny is one of the rarest and most sought-after mules.
Another example sold recently for more than $100,000.
QUALITY'S ANOTHER KEY
Adding to the penny's appeal is its excellent condition.
The example that sold for $66,000 is certified in an MS65 Red grade by coin appraiser PCGS.
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MS65 is only 5 points away from a perfect score of MS70.
And the Red designation is for pennies that are so well taken care of that they still have a reddish tint.
Most pennies in circulation tend to darken and lose their red coloring as the years go by.
If you think you have a 2001-D Mule Penny, make sure to get it authenticated by a reputable third party.
MORE ERRORS TO LOOK FOR
Error coins are some of the most sought-after rare pieces.
And many of the errors are barely noticeable to the untrained eye.
A Kennedy half-dollar with two tiny letters of FG missing next to John F Kennedy's head sold for over $2,000.
And a Buffalo Nickel sold for $3,840 because one small leg was missing on the reverse.
Meanwhile, other valuable errors are more obvious.
These include many double-die coins, which result in duplicating elements.
One of the most famous versions is the 1958 Lincoln double die penny, which recently went for $300,000 at auction.
Check out a rare dime that sold for nearly $11,000.
Read More on The US Sun
And see if your bill has a fancy serial number making it worth thousands of dollars.
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