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Thoughts on this 1964 quarter rpm?

What do you think of this 1964? I have some nicer 64's but none with an error

Is that machine doubling on the reverse?





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    FredWeinbergFredWeinberg Posts: 5,724 ✭✭✭✭✭

    It’s known as mechanical doubling or shelf doubling –
    very common, and not considered an error.

    Not a re-punched mint mark

    Retired Collector & Dealer in Major Mint Error Coins & Currency since the 1960's.Co-Author of Whitman's "100 Greatest U.S. Mint Error Coins", and the Error Coin Encyclopedia, Vols., III & IV. Retired Authenticator for Major Mint Errors
    for PCGS. A 49+-Year PNG Member...A full numismatist since 1972, retired in 2022
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    Thank you Mr Weinberg, it looks like you certainly would know. I really thank you. I am dropping another photo of the mint mark as close as I can get it. If its not a re punched mint mark may I ask what causes that?

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    jmlanzafjmlanzaf Posts: 31,997 ✭✭✭✭✭

    @wastafford2 said:
    Thank you Mr Weinberg, it looks like you certainly would know. I really thank you. I am dropping another photo of the mint mark as close as I can get it. If its not a re punched mint mark may I ask what causes that?

    Planchet movement during the strike

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