

1966 SMS DDO 50C Doubled Profile Half Dollar MS66 – Rare Error Coin in High Grade
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“A true one-of-a-kind piece in our inventory — once sold, it may not be available again.”
Add a fascinating mint error to your collection with this 1966 SMS Kennedy Half Dollar featuring a Doubled Profile (DDO) graded MS66 — a rare and highly collectible example from the Special Mint Set era.
A UNIQUE SPECIAL MINT SET ISSUE
During 1965–1967, the United States Mint produced Special Mint Sets (SMS) instead of traditional proof or mint sets. These coins were struck with improved finishes and stronger detail compared to normal circulation strikes.
The obverse features Gilroy Roberts’ portrait of President John F. Kennedy, while the reverse displays Frank Gasparro’s Presidential Seal design.
This particular coin is notable for its Doubled Profile error, where a visible doubling appears along Kennedy’s profile — one of the most recognized varieties among collectors.
MS66 – HIGH-GRADE PRESERVATION
Graded MS66, this coin is a beautifully preserved example showing strong detail and excellent eye appeal.
Characteristics of an MS66 grade include:
• Strong, clean surfaces with minimal marks
• Sharp strike and well-defined design details
• Attractive original mint luster
• Excellent overall eye appeal
RARITY & COLLECTOR DEMAND
Error and variety coins like this 1966 SMS Doubled Profile Kennedy Half Dollar are highly sought after by collectors.
They are especially desirable among:
• Kennedy Half Dollar collectors
• Error and variety coin collectors
• Special Mint Set collectors
• High-grade U.S. coin enthusiasts
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