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CONECA (pronounced: CŌ´NECA) is a national numismatic organization devoted to the education of error and variety coin collectors. CONECA focuses on many error and variety specialties, including doubled dies, Repunched mintmarks, multiple errors, clips, double strikes, off-metals and off-centers—just to name a few. In addition to its website, CONECA publishes an educational journal, The Errorscope, which is printed and mailed to members bimonthly. CONECA offers a lending library, examination, listing and attribution services; it holds annual meetings at major conventions (referred to as Errorama) around the country.

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ddo or nahhh

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  • ddo or nahhh

    I think this is a double die but my other half says nahhh so any info would be helpful thanks. Just so everyone knows he is right 99.9 percent of the time so I will not be surprised if I am wrong.
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    This gallery has 5 photos.

  • #2
    Ok, a few things I want to point out.
    The pictures are decent, the lighting is Ok and those are two thumbs up.

    Now, it's important to us to know the year and mintmark of the coin. This is needed so we can assess whether those same exact areas appear on any other known example of a doubled die. If you also add a decent full photo of the obverse and reverse of the coin, it can help as well.

    Lastly, it may seem nit picky, but this is actually a "variety". Varieties are typically:
    Doubled dies, re-punched dates, over-dates, misplaced dates, re-punched mint marks, over mint marks and a few others.

    Just about everything else would be an error (laminations, off-centers, multi-strikes, capped dies, mules, wrong planchets)

    Some times, the moderators will move these into the appropriate area. Just a heads up !

    With a doubled die, a working die receives more than one impression from the master hub die. These impressions are typically at the same amount of pressure. so they should be of equal depth. The amount these impressions are off varies. Most seem to be off axis, to the right or to the left. That means that the doubled die impressions should be close to or at the same height. That usually is the difference whether it is a doubled die or suspected machine doubling.

    Mechanical doubling or machine doubling / damage, is usually one impression that when the dies strike a coin and starts to raise up and away from the coin it received damage and one part of the letter or number is lower than the other. IF those areas were put back together at the same height, it would look like one regular number or letter once again. mechanical doubling or damage can occur in may different ways and situations.

    These working dies strike hundreds of thousands of coins in their lifetime, those dies go from new and pristine to worn out and nearly falling apart in a normal life cycle. Add in the fact that we are talking about a machine. Add in a slight human error on adjustment, or something wiggles or moves unexpectantly and odd things occur.

    What your coin shows is metal movement towards the rim as far as I can tell. The hammer die squeezed the planchet onto the anvil die and as it did so, it looks as if some of the metal simply flowed toward the rim to fill in the area around the collar (outer circular wall), to make a full round Lincoln cent.

    Yes, he appears to be right again.


    BUT knowledge is power.

    Have a look at a average looking DDO from 1972. That example shows two impressions close to the same height. It shows a classic "cookie cutter" style line where one impression was pressed right over the other. Yes, they were just a tiny bit off.

    http://varietyvista.com/01b%20LC%20D...972PDDO003.htm


    Want some WOW DDO's ? remember that "same height" thing I mentioned? Have a look.

    Check out the 1972 doubled Die #1

    http://varietyvista.com/01b%20LC%20D...972PDDO001.htm

    !969-S (one of these was found a few years back from a roll search event)

    http://varietyvista.com/01b%20LC%20D...969SDDO001.htm

    1955

    http://varietyvista.com/01a%20LC%20D...955PDDO001.htm


    Keep up the search ! There are plenty of varieties out there. It takes patience, practice and perseverance !
    Last edited by MintErrors; 02-17-2022, 08:05 AM.
    Gary Kozera
    Website: https://MintErrors.org

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    • #3
      The moderator MAY come in here and say something, there is supposed to be only one coin per post so people who read posts understand what is what when it comes to which coin people are talking about. It may be best to move this to a new post.
      Gary Kozera
      Website: https://MintErrors.org

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