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  1. #1
    Paid Member makecents's Avatar
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    1986 P Is this grease mold doubling or just from deterioration?

    Additional Information
    Date: 1986

    I have not found a coin with grease mold doubling yet. I wondered if that is what I have here or is it just from deterioration?

    Error Ref Link (http://www.error-ref.com/grease-mold-doubling/)

    Thanks for looking.

    Jon
    Attached Images Attached Images

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    Forum Ambassador VAB2013's Avatar
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    Jon, I'm not sure and I don't know much about these... but I'm leaning more toward plating disturbance doubling. I keep going back looking at the grease mold doubling example on error-ref.com and the terminal digit looks "more slightly enlarged" than the 6 on yours. Let's see what the guys say!

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  5. #3
    Lincoln Cent Variety Expert mustbebob's Avatar
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    I agree with Viv's assessment. I am thinking simple plating issues also.
    Bob Piazza
    Lincoln Cent Attributer
    coppercoins.com

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    Forum Ambassador VAB2013's Avatar
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    Quote Originally Posted by mustbebob View Post
    I agree with Viv's assessment. I am thinking simple plating issues also.
    Thank you Bob! Errors are really tough to figure out, even with pics I have a hard time deciding! Glad you are out of harms way from Dorian, hopefully just a little wind and rain and not a ton of leaves and tree limbs this time around!

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    Paid Member makecents's Avatar
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    Thanks Viv and Bob!! I kinda figured just deterioration but have always been on the lookout for a nice example of grease mold doubling and as few as I have seen posted, are not very common. I appreciate you taking a look Bob and letting us know though. The search continues!!

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  11. #6
    Forum Ambassador VAB2013's Avatar
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    Jon, I don't know if die deterioration has anything to do with plating issues. That's a question for the pros, but maybe it is possible for a die that is worn out to strike a planchet with already defective plating and cause some of the issues that we see.

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  13. #7
    Lincoln Cent Variety Expert mustbebob's Avatar
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    Die deterioration will not directly affect plating. That stuff is reserved for the strike and occasionally if there is something on the die itself (like deeply punched mintmark) that would tear through the plating.
    Bob Piazza
    Lincoln Cent Attributer
    coppercoins.com

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    Forum Ambassador VAB2013's Avatar
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    Quote Originally Posted by mustbebob View Post
    Die deterioration will not directly affect plating. That stuff is reserved for the strike and occasionally if there is something on the die itself (like deeply punched mintmark) that would tear through the plating.
    Thank you Bob for answering my question! I knew you'd have the answer

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  17. #9
    Moderator jfines69's Avatar
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    So far, according to Error Ref, GMD has only been found on 1995 - 2000 Lincolns... If memory serves me correctly Larry and 1 other person on the LCF has found these???
    Jim
    (A.K.A. Elmer Fudd) Be verwy verwy quiet... I'm hunting coins!!! Good Hunting!!!

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