Actually it looks like a clipped planchet. Worth $3.
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I think it is doubled died and a miss strike error
M
Marc's Expert Appraisal
ANA-Certified Numismatist · Hudson Valley Numismatics
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Dime Mint error. Obverse: Roosevelt is bald. Reverse: Large blank aria. Picture off reverse…
This could be struck through grease or other obstruction. It could also be excessive wear and damage. Value questionable.
Double die I believe
Not sure what you are basing this on. Look up 1955 double die to see what true doubling looks like.
Error coins
Where??