Doubled Die Error Coins
A doubled die happens when a die receives a misaligned second impression during manufacture, doubling the design on every coin it strikes. Strong doubled dies are among the most valuable and collectible mint errors.
Think you have a doubled die? Check it.
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What to look for
Famous doubled die coins
- 1955 Doubled Die Lincoln Penny — The most famous of all — dramatic naked-eye doubling on the date and lettering.
- 1969-S Doubled Die Lincoln Penny — One of the rarest modern Lincoln errors — five and six figures.
- 1972 Doubled Die Lincoln Penny — A strong, more attainable DDO worth hundreds to over $1,000.
- 1995 Penny (Doubled Die) — Strong 1995 DDO on LIBERTY and AMERICA — easy to find in rolls.
- Doubled-Ear Lincoln Pennies (1984 & 1988) — 1984 and 1988 Lincoln cents with a doubled earlobe.
- 2005 Minnesota Quarter (Doubled Die) — Extra-tree doubled die reverse varieties on the state quarter.
Think you have a doubled die? Check it.
Snap a photo and Coin AI identifies the coin, estimates its grade, and gives a value range in seconds.
Frequently asked questions
What is a doubled die coin?
It is a coin struck by a die that received a doubled, misaligned impression during its manufacture. Every coin from that die shows the same doubling — most visibly on the date and lettering. True doubled dies are different from worthless machine doubling.
How do I tell a doubled die from machine doubling?
A true doubled die shows separated, rounded doubling with notches inside the letters. Machine doubling looks flat and shelf-like, as if the design slid sideways, and adds no value. Photograph your coin in Coin AI to help distinguish them.