1970 s Lincoln penny

Discussion in 'Error Coins' started by Alberto Mejia JR., Jan 13, 2021 at 9:56 PM.


Is this Lincoln penny ddo?

  1. No

    2 vote(s)
  2. yes

    0 vote(s)
Multiple votes are allowed.
  1. Alberto Mejia JR.

    Alberto Mejia JR. New Member

    are either of these Penns ddo? I don't know the difference between double machining and ddo.penny, ddo

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  3. ldhair

    ldhair Clean Supporter

    It's called machine doubling. Your coins are not from a doubled die.
    jamor1960 and furham like this.
  4. thomas mozzillo

    thomas mozzillo Supporter! Supporter

  5. paddyman98

    paddyman98 Let me burst your bubble! Supporter

    Hardly anyone does :(

    It takes time to learn.
    First of all the correct Numismatic terminology is Doubled Die.. not double die. It's important to know that.

    Doubled Die is known as a Variety. It is explained how it occurs here - https://doubleddie.com/58222.html
    It is not a striking issue.

    Strike doubling such as MD - Mechanical or Machine doubling known as Worthless doubling is not a variety and explained here - https://doubleddie.com/144822.html

    DDD - Die Deterioration doubling is also Worthless doubling is not a variety and is explained here - https://doubleddie.com/144843.html

    It's a lot of reading. Good luck.
    thomas mozzillo likes this.
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