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Buffalo nickel 1916 obverse

Comments welcome.

The primary characteristic of mechanical doubling on coins with raised design elements is that the secondary image (doubling) has a flat, shelf-like appearance. On genuine doubled dies the secondary image is raised and rounded just like the primary image. Also, genuine doubled dies are characterized by a splitting of the serifs on letters with serifs, or a “notching” of the corners of the letters which are doubled. This splitting of the serifs or notching of the letter corners will not be found on coins with mechanical doubling.

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    If its magnified sufficiently it looks pretty convincing.

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    gumby1234gumby1234 Posts: 5,428 ✭✭✭✭✭

    Mechanical doubling

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    LanceNewmanOCCLanceNewmanOCC Posts: 19,999 ✭✭✭✭✭

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    rickoricko Posts: 98,724 ✭✭✭✭✭

    Good picture for study..... Cheers, RickO

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    BuffaloIronTailBuffaloIronTail Posts: 7,413 ✭✭✭✭✭

    MDD.

    The doubling also shows on the date and Iron Tail's neck. Strange how the doubling on the middle feather extends all the way through to the end of the feather, but there is no doubling on the small third one.

    Pete

    "I tell them there's no problems.....only solutions" - John Lennon
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    CaptHenwayCaptHenway Posts: 31,564 ✭✭✭✭✭
    edited December 12, 2022 9:43AM

    @BuffaloIronTail said:
    MDD.

    The doubling also shows on the date and Iron Tail's neck. Strange how the doubling on the middle feather extends all the way through to the end of the feather, but there is no doubling on the small third one.

    Pete

    Mechanical Doubling is caused by the die moving away from the coin (normal) after the strike and sideways (abnormal, caused by loose nuts and bolts on the press). By the time that the die moved far enough to contact the higher relief long feather, it had already cleared the low relief short feather.

    Numismatist. 50 year member ANA. Winner of four ANA Heath Literary Awards; three Wayte and Olga Raymond Literary Awards; Numismatist of the Year Award 2009, and Lifetime Achievement Award 2020. Winner numerous NLG Literary Awards.
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    BuffaloIronTailBuffaloIronTail Posts: 7,413 ✭✭✭✭✭

    @CaptHenway said:

    @BuffaloIronTail said:
    MDD.

    The doubling also shows on the date and Iron Tail's neck. Strange how the doubling on the middle feather extends all the way through to the end of the feather, but there is no doubling on the small third one.

    Pete

    Mechanical Doubling is caused by the die moving away from the coin (normal) after the strike and sideways (abnormal, caused by loose nuts and bolts on the press). By the time that the die moved far enough to contact the higher relief long feather, it had already cleared the low relief short feather.

    Thanks for the explanation, Tom.

    Pete

    "I tell them there's no problems.....only solutions" - John Lennon

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