Strike
Filled die (struck through grease)
Debris packed into the die recesses blocked metal from filling the design.
How to spot it
Missing or mushy letters and digits with a smooth, slightly sunken surface — not the sharp separation of a real doubled die.
Value impact
Usually minimal; often confused with more valuable die varieties.
Known examples
- Weak or absent mint marks and dates
Check your coin for this error
The identifier looks for filled die (struck through grease) on every scan and flags it on your result with an estimated value range.