Possible experimental planchet

possible bicentennial half dollar planchet mistake. kennedy half dollar has a bubble on both sides of coin and coin appears to be sandwiched. what are your opinions.
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possible bicentennial half dollar planchet mistake. kennedy half dollar has a bubble on both sides of coin and coin appears to be sandwiched. what are your opinions.
Answers
Damaged. Go to the bank and exchange it for two quarters and you'll be better off.
ANA LM
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