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  1. #1
    Moderator, Die & Variety Expert jcuve's Avatar
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    Class IV (Offset Hub Doubling)

    This class of Doubled Die is produced when two hubbings have their centers misaligned. It is characterized as having doubling that is evenly spread in one direction unlike Classes I & V where the misalignment-event shows rotation at or near the center (I) or at or near the rim (V). Doubling is often rounded, found closer to the center and when identified on numeric or alphabetic characters, shows notching.

    It has been hypothesized that the reason many examples do not show doubling near the rim is because the first hubbing only received a partial hubbing. Such an incomplete hubbing would result in design elements not being pressed deep enough in the middle of the die, and not at all along the perimeters; remember the die originates in a conical shape until it is completely pressed down so the outer devices may not have been hubbed the first time around. A few examples that show doubling primarily in the center portions are 1909P DDO-001; 1941P DDO-005 (1DO-006); 1942P DDO-002 (1DO-005); and 1942S DDO-001

    Below is a facsimile of a fictitious 1960P with a strongly doubled Class IV DDO. In this case the first hubbing would have been centered and complete with the second hubbing having its center oriented N-NE from the first. It should be noted that this example is showing universal doubling on all design elements (including the whole portrait) which has never been documented.



    Below is 1983P DDR-001, which exhibits a large spread going North, it is stronger than the above hypothetical, but the central elements only show doubling around the parameter of the memorial and in a few sections of the building itself (like the upper portions of the columns). Notice the notching (a clear indication of hub doubling), rounded secondary images and how the secondary hubbing shifts consistently in one direction.



    Next we will find two overlays demonstrating that the ’83 DDR has simply a wide north shift in the hubbings. In the second picture green is first hubbing followed by red second (the first hubbing appears as if it were on the first).




    Another bold example, yet displaying only a partial first hubbing is 1984P DDO-001, with its widely doubled ear, beard details, back of head and bow tie. This DDO also appears to be ever so slightly rotated as the second piece of the bowtie resides further away proportionally than the second ear. If correct, the center of rotation would be off at least a centimeter to the side of the die past IN of IGWT.






    Jason Cuvelier


    MadDieClashes.com - ErrorVariety.com
    TrailDies.com - Error-ref.com - Port.Cuvelier.org
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    (images © Jason Cuvelier 2008-18)___________________

  2. #2
    Moderator, Die & Variety Expert jcuve's Avatar
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    Notches: As has been pointed out by most variety specialists and attributers: notching, even though the doubled areas are shallow, is always, to a degree, present. MD will seemingly smear the doubled area away from the device impacted but it will not leave notches, how could MD leave notches? …Think about it while viewing a fictitious notching diagram of Class IV doubling going south illustrated below. While the degree of doubling is strong, there would be clear evidence of notching whereas MD would have pushed or flattened metal over the areas that display notching.


    To keep on the present track, our final examples are 1909 DDO-001 and 1942S DDO-001. Like ’84 DDO-001 these DDOs have isolated doubling that is consistent in one direction. An important note is that while to a seasoned variety collector they do not look like Machine Doubling (MD), many illustrations in books and on the web, to a degree, makes it seem similar to MD as the doubling is shallow, nevertheless, there are always notching to a degree. The illustrations that follow have black arrows to show doubled areas and white arrows showing notches.





    Last edited by jcuve; 01-16-2010 at 02:23 PM.



    Jason Cuvelier


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    TrailDies.com - Error-ref.com - Port.Cuvelier.org
    CONECA

    (images © Jason Cuvelier 2008-18)___________________

  3. #3
    Moderator, Die & Variety Expert jcuve's Avatar
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    Details of 1983P DDR-001:




    Jason Cuvelier


    MadDieClashes.com - ErrorVariety.com
    TrailDies.com - Error-ref.com - Port.Cuvelier.org
    CONECA

    (images © Jason Cuvelier 2008-18)___________________

  4. #4
    jpl6332
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    Really Big Show...Nice Job Jason, I also like the cutouts on this series, it must have taken quite awhile to get those just right.

  5. #5
    Moderator, Die & Variety Expert jcuve's Avatar
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    Quote Originally Posted by jpl6332 View Post
    Really Big Show...Nice Job Jason, I also like the cutouts on this series, it must have taken quite awhile to get those just right.

    Thanks Jeff! Glad you noticed - cutting out that stuff out in Photoshop takes time and skill. Of course once I have one done, I can reuse it again later. For instance, I have multiple versions of the Notches example above for other DD classes and the '83 DDR overlay was the memorial I cut out from my 1985 Clash overlay.



    Jason Cuvelier


    MadDieClashes.com - ErrorVariety.com
    TrailDies.com - Error-ref.com - Port.Cuvelier.org
    CONECA

    (images © Jason Cuvelier 2008-18)___________________

  6. #6
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    Great tutorial, Jason. Those last two doubled dies can be really confusing in their close resemblance to machine doubling.

  7. #7
    Member jupiterkm1's Avatar
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    Yes, thanks Jason, this is again very helpful.
    Kevin

  8. #8
    Paid Member hasfam's Avatar
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    Another great job. I'm glad you're a Lincoln variety collector and on the LCR. We continue to benefit from your experience and creativity over and over again.
    Thanks
    Rock
    Rock
    My LCR Photo Album of Graded Lincoln Cent Cherry Picker Varieties

  9. #9
    Registered User celartu's Avatar
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    Thanks jcuve.

  10. #10
    copperlover
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    Thanks Jason for your patience and understanding,your expertise which I value and treasure highly. You go way beyond what is asked and this is the first time I have ever had the process explained with such clear examples. How can we go anywhere else for help.You work is invaluable and will stay with us for a very long time. As I learn there is so much to be absorbed and it takes many years to get a full understanding of different errors, varities and anomalies. Hopefully you will be able to pass this on to all of us in a much shorter time. I am still astounded at your skill sets in attribution, photography and still have time to tutor us. Thanks to Mike Diamond, B.J Neff and Bob Piazza for their continued support. This is the best site that I know.

    Lucien

 

 

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