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1968-S Quarter RPM on Mintmark

hyf88hyf88 Posts: 294 ✭✭✭
in U.S. Coin Forum
Came across this while looking at a few proof sets, thinking it looks more like an RPM than machine doubling. Possibly CONECA PRM #4, but it doesn't have machine doubling on the obverse. Anyone else think this is an RPM?

- Bill

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    CaptHenwayCaptHenway Posts: 34,221 ✭✭✭✭✭
    Looks like a combination of repunching (upper curve and lower left corner) and movement between the normal two strikes (flatteded S out above the top).
    Professional Numismatist, Retired. 55 year member ANA. Former ANA Senior Authenticator. Winner of four ANA Heath Literary Awards; three Wayte and Olga Raymond Literary Awards; Numismatist of the Year Award 2009, and ANA Lifetime Achievement Award 2020. Winner of the PNG's 2026 Robert Friedberg Award for "The Enigmatic Lincoln Cents of 1922," Available now from Whitman or Amazon.
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    georgiacop50georgiacop50 Posts: 2,909 ✭✭✭✭
    Yes-RPM
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    19Lyds19Lyds Posts: 26,524 ✭✭✭✭
    I've seen this before and it is not considered an RPM. Remember, proof coins are struck multiple times to bring up the relief and there can be slight movement of the dies during subsequent strikes.
    I decided to change calling the bathroom the John and renamed it the Jim. I feel so much better saying I went to the Jim this morning.



    The name is LEE!
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    BustHalfBrianBustHalfBrian Posts: 4,200 ✭✭✭✭
    All I see is shadows and die erosion...
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    rickoricko Posts: 98,724 ✭✭✭✭✭
    Not sure what that is.... certainly not a clean proof strike.... maybe get Fred Weinberg to look at it....let us know. Cheers, RickO

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