
By CoinWeek ….
Double denomination coins are error coins that feature mismatching dies intended for two different coin denominations. This type of error often results from a struck coin accidentally being fed into the press and regular blanks of another coin type. These overstrikes make up most of the double denomination errors involving the Lincoln Memorial Cent and the clad Roosevelt Dime.
A mule is something different altogether. To make a mule, dies from mismatched coin types are installed into a coin press. When these mismatched dies strike a planchet, they create a coin with the wrong design on one of the sides.

In the case of the 2001-D Lincoln Cent / Roosevelt Dime Mule Error offered by GreatCollections, a Roosevelt Dime reverse was inadvertently mounted into a coin press. The resulting error coin shows the full dime design with an extra-wide rim area and a mostly complete cent obverse, that shows the expected weakness along the periphery where the smaller dime die did not provide proper resistance. This example is graded MS65RD by PCGS.
In January 2024, Heritage Auctions offered a different 2001-D Lincoln Cent / Roosevelt Dime. That coin, graded MS66RD by PCGS, sold for $114,000. Heritage also sold this MS65RD example in 2022 for $78,000.
At the time of publication, the highest of 52 bids is $28,000. Bidding ends on June 1, 2025 at 7:48 PM Pacific Time.
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GreatCollections has offered high-quality examples of thousands of Lincoln Cents over the years, including many top population pieces. To search through GreatCollection’s archive of over 600,000 certified coins and notes the company has sold, please visit the GreatCollections Auction Archives.
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