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Doubled Die Reverse
Sections marked for specialist review use live catalog counts; educational wording may still be refined.
Doubled die reverse (DR) listings in the CopperCoins catalog.
Catalog counts
Counts are live from the CopperCoins die catalog.
Featured examples
Representative catalog dies. Editorial picks override the automatic list when set in CMS.
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1983p1dr001
1983 · DR
Class 4 - Offset Hub Doubling
An extreme spread to the north shows on all devices. This die is in the top five of all Lincoln cent doubled die reverses. Because of planchet plating prob…
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1939p1dr003
1939 · DR
Class 2+5+6 - Distorted and Pivoted and Distended Hub Doubling
Extreme extra thickness shows on all outer devices with separation toward center that shows a slight counterclockwise pivot from K5.
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1939p1dr005
1939 · DR
Class 6 - Distended Hub Doubling
Extremely strong extra thickness shows on all outer devices, the top of ONE, and some of the bottom portions of AMERICA.
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1943p1dr003
1943 · DR
Class 6 - Distended Hub Doubling
Extreme extra thickness can be seen on the motto, dots, wheat ears, and the wheat stems. Medium extra thickness on the tops of ONE and on the bottom of OF AM…
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1944p1dr005
1944 · DR
Class 6 - Distended Hub Doubling
Extreme extra thickness on all outer devices including the motto, wheat stalks, dots, and the wheat stems. Extra thickness also can be seen on the upper ONE…
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1946p1dr003
1946 · DR
Class 6 - Distended Hub Doubling
Strong to extreme extra thickness on all outer devices.
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1947p1dr001
1947 · DR
class 6 - Distended Hub Doubling
Extreme extra thickness with separation shows on most reverse devices. A nearly triple-thickness spread is evident on the entire motto and the wheat stems.…
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1962p1dr001p
1962 · DR
Class 2 - Distorted Hub Doubling
A nice spread shows on the lower portion of the die, especially ONE CENT, FG, and the lower memorial base. Lighter separation can be seen on UNITED and AMER…
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High-interest years
Open Die Search for all doubled dies · Date Guide
By mint (catalog totals)
- D: 625
- No mint mark / P: 1,443
- S: 210
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Frequently asked questions
What is a doubled die?
A doubled die is a die variety created during the die-making process (hub doubling). The doubling is part of the die and can appear on many coins struck from it.
Is machine doubling the same as a doubled die?
No. Machine doubling (mechanical doubling) is not hub doubling and is generally not collectible as a doubled die variety Machine doubling is actually the result of malfunction in the striking process.
Do all doubled dies have a Class 1–9 assignment?
Not always. CopperCoins stores class text when recorded. Some dies have clear class labels; others need further study. Classification is assigned to the appearance of the result, not the method with which the die was made.
How do I attribute my coin?
Match year, mint, and diagnostic markers to a cataloged die page. Strong apparent doubling alone is not enough — compare markers and design details carefully. If the variety on your coin is listed, there will be something in a photo somewhere in the listings that matches exactly what you have. It may be very small and not mentioned, but it will be there.