1978 Roosevelt Dime Mint Error

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wsdjr02
wsdjr02 Posts: 2 ✭
edited September 4, 2025 5:53AM in Q & A Forum

Attached are 4 pictures of a 1978 dime that has the obverse completely muted. Given the clarity of the front, I believe this to be a mint error. I am interested in other opinions as to what this might be and the next steps in determining the value if it is. The weight of the coin is 2.29 grams.




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  • Somebody
    Somebody Posts: 10 ✭
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    Not underweight. I'm thinking damage, possibly chemical, to the reverse.

  • Greenstang
    Greenstang Posts: 1,646 ✭✭✭✭✭
    edited September 3, 2025 3:31PM
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    Welcome to the forum

    Struck through die cap.
    Acid would have eaten away the rims and been lighter.
    Also this is the forum for banknotes, not coins.
    Perhaps a mod can move it.

  • wsdjr02
    wsdjr02 Posts: 2 ✭
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    Sorry for the location of the post. It's my first time here. Hopefully a moderator can move it.

    If you notice on the front, there is also some off "centerness" to the coin. Chemical damage to back would not explain this. Please keep the comments coming.

  • Greenstang
    Greenstang Posts: 1,646 ✭✭✭✭✭
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    The off “centerness” is to due to a slightly off center die but still within spec.

  • JBK
    JBK Posts: 17,862 ✭✭✭✭✭
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    I don't like the way the edge shows metal rolled up over the reeding.

    In any case, if you post this photo/question in the US Coins Forum you'll get more responses.

  • lilolme
    lilolme Posts: 2,993 ✭✭✭✭✭
    edited September 4, 2025 9:25AM
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    Errors are not my thing, so.....
    I did a sort at error-ref.com and here it is for die cap.

    https://www.error-ref.com/?s=die+cap

    What I will note is that it states the die cap is usually on the anvil die and if I got this correct, that would be the obverse die for this dime. There is one for the reverse die cap Reverse Die Cap (Anvil Die Cap in most years) (as stated) but it notes these are normally struck out of collar (normally but maybe not always?).

    So the OP coin has reeding seen in the first picture (in collar) and the missing details on the reverse.

    Again I don't know errors but is it all adding up or not?

    There are also a couple of others (not is link sort) for struck through (detached) clad layer and two planchets at once and the intentional heavy grease. But...??

    Tag @FredWeinberg @SullivanNumismatics
    Any others to Tag as JBK noted most don't look at this forum page so often.

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  • JBK
    JBK Posts: 17,862 ✭✭✭✭✭
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    Let's add @MWallace

  • MarkKelley
    MarkKelley Posts: 2,101 ✭✭✭✭✭
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    I'm guessing it's struck through a detached clad layer. That scenario would allow a muted reverse design to show through.

  • OAKSTAR
    OAKSTAR Posts: 8,770 ✭✭✭✭✭
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    How about a full blockage reverse?

    Disclaimer: I'm not a dealer, trader, grader, investor or professional numismatist. I'm just a hobbyist. (To protect me but mostly you! 🤣 )

  • FredWeinberg
    FredWeinberg Posts: 6,039 ✭✭✭✭✭
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    I believe it’s struck through a detached unstuck outer clad layer.
    The reverse design is coming through that thinning clad layer that probably struck numerous coins as it stuck to the die.

    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 50+ Year PNG Member.A full-time numismatist since 1972, retired in 2022.
  • OAKSTAR
    OAKSTAR Posts: 8,770 ✭✭✭✭✭
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    Thanks Fred! 👍

    Disclaimer: I'm not a dealer, trader, grader, investor or professional numismatist. I'm just a hobbyist. (To protect me but mostly you! 🤣 )

  • FredWeinberg
    FredWeinberg Posts: 6,039 ✭✭✭✭✭
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    Mark Kelly nailed it first -
    I was responding to a mesg.

    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 50+ Year PNG Member.A full-time numismatist since 1972, retired in 2022.
  • SullivanNumismatics
    SullivanNumismatics Posts: 893 ✭✭✭✭
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    I agree with Mark and Fred, struck thru a detached clad layer. The finning on the obverse is indicative of that, and the somewhat visible design.

    www.sullivannumismatics.com Dealer in Mint Error Coins since 2003.

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