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I feel like this coin best shows why I'm concerned with SMS diagnostics

WatchbelieveWatchbelieve Posts: 527 ✭✭✭
in U.S. Coin Forum

Strong Squared Rim, Deep Strike, No contact marks, heavy die polishing, and in person you can see a difference in finish compared to my other dimes.

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  • KyleKyle Posts: 1,822 ✭✭✭✭✭
    edited August 27, 2017 10:47PM

    This isn't my area of expertise so I had to compare to the example @mercurydimeguy referenced in your other thread along with a couple others that have sold at Heritage (linked below).

    I feel like the third image I link to below does the best job of showing the die polish lines that are present on these SMS coins. What really stood out to me was that the die polish lines on SMS coins are all going in the same direction, and cover the entire surface of the coin. On your coin, it looks like the lines are vertical in some areas and horizontal in others, plus there are some spots which don't appear (based on these photos) to have any lines at all. All that said I think you have a regular 1964 dime with some die polish lines, which isn't too uncommon (I bought a '64 dime recently with very similar die polish lines).

    PCGS MS-68 SMS Roosevelt Dime
    PCGS MS-67 SMS Roosevelt Dime
    Another PCGS MS-68 SMS Roosevelt Dime

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  • WatchbelieveWatchbelieve Posts: 527 ✭✭✭

    Actually, the links you posted show that the lines go in all directions and they crisscross. It actually uses the word crisscross when describing the Jefferson 64 SMS.

  • rickoricko Posts: 98,724 ✭✭✭✭✭

    I am a tad confused... Is your interest here in finding SMS coins in circulation? Or just in the analysis of the coins already in SMS sets? Cheers, RickO

  • FredWeinbergFredWeinberg Posts: 5,819 ✭✭✭✭✭

    The top coin doesn't have squared rims, imo.
    The left side is a very minor mis-aligned die,
    giving it the wider rims. Not squared.

    The Die Polishing marks shown are very very
    common on this date. I first saw this on 1964
    dimes, while I was looking for errors, in the
    60's.....not indicative of SMS strikes.

    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
  • robecrobec Posts: 6,752 ✭✭✭✭✭

    Here are a few photos of PCGS MS 1964 Roosevelt's showing the similar criss-cross die polishing. These are screen captures taken from CoinFacts.




    - Bob -

    MPL's - Lincolns of Colorimage
    Central Valley Roosevelts

  • CaptHenwayCaptHenway Posts: 32,147 ✭✭✭✭✭

    What Fred said.

    Numismatist. 50 year member ANA. Winner of four ANA Heath Literary Awards; three Wayte and Olga Raymond Literary Awards; Numismatist of the Year Award 2009, and Lifetime Achievement Award 2020. Winner numerous NLG Literary Awards.
  • RogerBRogerB Posts: 8,852 ✭✭✭✭✭

    All within normal coinage range.

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