Rotated Die Error Coins

A rotated die error occurs when one coin die is not properly aligned with the other, causing the obverse and reverse designs to be oriented at an angle to each other. On normal U.S. coins, the obverse and reverse are coin-turn aligned (180 degrees). A rotation error means the reverse is turned by more or fewer degrees than intended.

How to Detect a Rotated Die Error

• Hold coin upright and flip it left or right (not up or down)
• On a normal coin, the reverse should appear right-side up
• If the reverse is rotated, you have a potential error
• Rotations of 90 degrees or more are most collectible
• 180-degree rotations (medal alignment) are dramatic and valuable

Value of Rotated Die Errors

• Minor rotations (5–30 degrees): minimal premium
• Moderate rotations (45–90 degrees): $25 to $100+ depending on coin
• Major rotations (180 degrees): $100 to $500+ depending on coin type

Common Coin Errors Detected

• Double Die Errors
• Off Center Strikes
• Clipped Planchet
• Broadstrike Errors

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