The Most Famous Doubled Die: 1955 Lincoln Cent DDO
The Error That Started It All
The 1955 Lincoln Cent Doubled Die Obverse is the most famous error coin in American numismatics. The doubling is so dramatic it's visible to the naked eye — LIBERTY, IN GOD WE TRUST, and the date all show extreme separation between two fully formed images.
An estimated 20,000 to 24,000 examples were released into circulation, making it scarce but not impossible to find. In high grades, this coin sells for tens of thousands of dollars. Even circulated examples in VF condition command significant premiums.
How Doubled Dies Happen
A doubled die occurs when the hub and working die are not perfectly aligned during the die-making process. If the hub shifts between impressions, the design elements get pressed in two slightly different positions on the die. Every coin struck from that die shows the same doubling — this is fundamentally different from machine doubling, which happens during striking.
The Diagnostic Table
The most important skill is telling true doubled dies from worthless machine doubling:
- True doubled die: Two distinct, rounded images — both show full serifs on letters — consistent doubling direction throughout
- Machine doubling: Flat, shelf-like displacement — no serifs on the displaced image — may vary across the coin — adds zero value
Other Famous Doubled Dies
- 1969-S Lincoln Cent DDO — One of the rarest, reaching six figures in high grades. Counterfeits are prevalent.
- 1972 Lincoln Cent DDO — The most affordable major DDO, making it a popular entry point for error collectors.
- 1995 Lincoln Cent DDO — Gained national attention when featured in mainstream news coverage, sparking widespread interest.
Discussion
- Do you own a doubled die variety? Which one?
- What's the most dramatic DDO or DDR you've seen in person?
- Have you ever caught a DDO while searching rolls or pocket change?
- Class I through VIII — do you collect by doubling class, or just by visual appeal?