Machine Doubling on steroids

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BNick33
BNick33 Posts: 46 ✭✭
in U.S. Coin Forum

Show your coin(s) with the greatest machine doubling.








"There's no such thing as a stupid question..."

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  • Russell12
    Russell12 Posts: 846 ✭✭✭✭✭
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    Must be a bad batch of steroids

  • jacrispies
    jacrispies Posts: 1,637 ✭✭✭✭✭
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    OP: the Indian head cent has what is mostly "Longacre doubling" which is an effect of the hubbing processes of the design in that time period.

    Here is a radical case of machine doubling (not double striking), also known on the classic series as "double profile":

    Discussed here with more examples:
    https://forums.collectors.com/discussion/1111641/pcgs-mistake-1812-50c-not-double-struck#latest

    "But seek ye first the kingdom of God and His righteousness and all these things shall be added unto you" Matthew 6:33. Young fellow suffering from Bust Half fever.
    BHNC #AN-10
    JRCS #1606

  • BNick33
    BNick33 Posts: 46 ✭✭
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    @jacrispies Thank you for the help. I think it's cool looking. Does the longacre doubling reduce the value of the coin. I know it's not a high grade coin but it does have the artist's initial L.

    "There's no such thing as a stupid question..."

  • BNick33
    BNick33 Posts: 46 ✭✭
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    Added for reference

    https://www.error-ref.com/longacre-s-doubling/

    "There's no such thing as a stupid question..."

  • habaraca
    habaraca Posts: 2,121 ✭✭✭✭✭
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    Ex Peterson 1813 107a
    Reverse has no doubling



  • ColoradoCoinGuy
    ColoradoCoinGuy Posts: 264 ✭✭✭
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    @rmpsrpms WOW, that is some outstanding low angle zoom photography.

    Member of LSCC, EAC, Fly-In Club, BCCS
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  • MasonG
    MasonG Posts: 7,567 ✭✭✭✭✭
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  • BNick33
    BNick33 Posts: 46 ✭✭
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    @rmpsrpms

    That 9 die chip must have been popular in the late '50s

    "There's no such thing as a stupid question..."

  • Peasantry
    Peasantry Posts: 299 ✭✭✭
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    @rmpsrpms said:
    Here are some views of a 1957-D Cent with MD, made more interesting by a large die chip that is also affected by the MD. Note the MM is not affected:

    Incredible shots. Straight on photos leave you guessing sometimes.

  • TPring
    TPring Posts: 388 ✭✭✭
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    QE II appears to be two-faced.

  • lkenefic
    lkenefic Posts: 9,518 ✭✭✭✭✭
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    Greg... you beat me to it! But if I'm not mistaken, I think the 1834 N-1 is "hub" doubling and not technically "machine doubling"... here's the one in my collection:

    Collecting: Dansco 7070; Middle Date Large Cents (VF-AU); Box of 20;

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  • BNick33
    BNick33 Posts: 46 ✭✭
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    @pursuitofliberty said:

    The coin also has some noticeable clash marks that add to her character

    :o

    "There's no such thing as a stupid question..."

  • jfriedm56
    jfriedm56 Posts: 3,101 ✭✭✭✭✭
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  • pursuitofliberty
    pursuitofliberty Posts: 7,926 ✭✭✭✭✭
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    @lilolme said:
    @pursuitofliberty The lines on the obverse center of Liberty are those from a clash of the shield and more specifically the horizontal ones (upper neck and jaw area). This is what I remember seeing before and thought a shield clash.

    >

    First, that's a great example of both a doubled die and machine doubling from a more modern coin. At least I THINK that's what it is. Trying to think through the process that creates that one.

    Remember CBH's are a little different as they were struck without a collar on a screw press using hand made dies, so the type of striking "errors" are different.

    As far as the clashes on mine go;

    Shield from Reverse Eagle's Breast on neck and over Ear
    Eagle Feathers in the left Obverse field in front of Chin and Neck
    Scroll and first U of UNUM below Bust, most noticeable just above 8 in Date

    There's also some clash marks on the Reverse but they're not as dramatic, and there are also a few cracks on the Obverse.


    “We are only their care-takers,” he posed, “if we take good care of them, then centuries from now they may still be here … ”

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  • anablep
    anablep Posts: 5,208 ✭✭✭✭✭
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    @rmpsrpms said:
    Here are some views of a 1957-D Cent with MD, made more interesting by a large die chip that is also affected by the MD. Note the MM is not affected:

    I’ve seen LiDAR images not nearly as amazing as these topographic images of the date on this coin. Well done!

    Always looking for attractive rim toned Morgan and Peace dollars in PCGS or (older) ANA/ANACS holders!

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  • lilolme
    lilolme Posts: 2,993 ✭✭✭✭✭
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    @pursuitofliberty said:

    @lilolme said:
    @pursuitofliberty The lines on the obverse center of Liberty are those from a clash of the shield and more specifically the horizontal ones (upper neck and jaw area). This is what I remember seeing before and thought a shield clash.

    As far as the clashes on mine go;

    Shield from Reverse Eagle's Breast on neck and over Ear

    .
    Been out a couple days but back to it now. Thanks, I was fairly certain of the shield clash on the neck. Must of had a miscommunication before. This brings me back to wondering how such a strong clash occurs in the depths of the recess of the obverse die device (Liberty that is). Perhaps an elevation profile (or whatever it would be called) would yield some good information (arching or non-flatness of die(s)). One of these days I might have to get one of these shield clashes. :D

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  • jacrispies
    jacrispies Posts: 1,637 ✭✭✭✭✭
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    Seldom seen double profiling on this Flowing Hair Dollar. Pretty coin

    https://auctions.stacksbowers.com/lots/view/3-1QKGIO/1795-flowing-hair-silver-dollar-bb-27-b-5-rarity-1-three-leaves-vf-30-pcgs

    "But seek ye first the kingdom of God and His righteousness and all these things shall be added unto you" Matthew 6:33. Young fellow suffering from Bust Half fever.
    BHNC #AN-10
    JRCS #1606

  • Rule556
    Rule556 Posts: 324 ✭✭✭✭✭
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    Here’s a fun one. My 1921 Peace dollar with mechanical doubling on the reverse seen in PEACE, a couple of the olive branch leaves, America and Unum, and the eagle’s head.

    I never quite understood how mechanical doubling can occur in only portions of the strike, but it definitely gives the coin its own personality.



    Newbie collector of type and circulated Peace dollars, photographer of places and animals, player of instruments and builder of amplifiers, espresso industry professional, and a person distracted by shiny objects.

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  • justcollecting
    justcollecting Posts: 218 ✭✭✭
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  • robec
    robec Posts: 7,051 ✭✭✭✭✭
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    - Bob -

    MPL's - Lincolns of Colorimage
    Central Valley Roosevelts

  • Catbert
    Catbert Posts: 8,258 ✭✭✭✭✭
    edited February 12, 2026 12:27PM
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    Shelf doubling on the date, stars, denomination, and rays to name a few.


    Seated Half Society member #38

    "She comes out of the sun in a silk dress,
    running like a water color in the rain...."

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