Struck Through Grease

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rainbowstew_54
rainbowstew_54 Posts: 75 ✭✭
in U.S. Coin Forum

I found a Quarter Struck Through Grease, it's a 19 (cough) 5 - Do people collect these. I can't seem to find much info on these type of coins such as how much to ask or what would be a reasonable offer? Thanks

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  • JBK
    JBK Posts: 17,862 ✭✭✭✭✭
    edited November 16, 2018 3:33AM
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    I don't think thats an error but we'll see what others say. On my phone that looks like gunk buildup on the coin.

    Assuming the areas in question are raised, why would you think they are struck through grease? In order for the dies to strike the design they need to come in contact with the surface of the planchet. If grease was in the way it would have been flattened down and any loss of design would be due to an incuse void caused by grease taking up space against the die.

  • Rampage
    Rampage Posts: 9,685 ✭✭✭✭✭
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    Definitely not an error. Just an old coin with gunk on it.

  • PerryHall
    PerryHall Posts: 47,752 ✭✭✭✭✭
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    @JBK said:
    I don't think thats an error but we'll see what others say. On my phone that looks like gunk buildup on the coin.

    Agree with the gunk buildup. A soak in acetone should remove it.

    Worry is the interest you pay on a debt you may not owe.
    "Paper money eventually returns to its intrinsic value---zero."----Voltaire
    "Everything you say should be true, but not everything true should be said."----Voltaire

  • Namvet69
    Namvet69 Posts: 9,423 ✭✭✭✭✭
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    With circulated coins, you can experiment with a wooden toothpick and touch the discoloration to see if you can remove it. You can also dip that coin in acetone to see if gunk will dissolve. Sharper images would help presenting a coin here. We want to see the obv and rev if relevant. Check out Plugable usb microscope on Amazon for your cell. Close-up images are great and I go thru lots of coins expeditiously. Strike thru a liquid generally doesn't add anything to surface, heat and pressure evaporates liquid and interferes with a full strike. It also alters the surface finish. The hunt continues. Peace Roy

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  • fivecents
    fivecents Posts: 11,207 ✭✭✭✭✭
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    Rose thorn is better than toothpick.

  • Treashunt
    Treashunt Posts: 6,748 ✭✭✭✭✭
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    nah, just PMD

    Frank

    BHNC #203

  • Hemispherical
    Hemispherical Posts: 9,370 ✭✭✭✭✭
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    @rainbowstew_54 Looks like the remnants of long decayed bubble gum. Might be of the sour-apple variety.

  • ricko
    ricko Posts: 98,724 ✭✭✭✭✭
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    Not struck through grease... that is a buildup of some material that would come off with an acetone bath.... get pure acetone, not nail polish remover....Cheers, RickO

  • FredWeinberg
    FredWeinberg Posts: 6,039 ✭✭✭✭✭
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    CG - circulation gunk

    Retired Collector & Dealer in Major Mint Error Coins & Currency since the 1960's.Co-Author of Whitman's "100 Greatest U.S. Mint Error Coins", and the Error Coin Encyclopedia, Vols., III & IV. Retired Authenticator for Major Mint Errors for PCGS. A 50+ Year PNG Member.A full-time numismatist since 1972, retired in 2022.
  • rainbowstew_54
    rainbowstew_54 Posts: 75 ✭✭
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    All of you were right - it was 'Gunk' I gave it a 15 minute soak in hot water and dawn dish soap, a bird feather scrub and now she's all ready to be released back into the wild.

  • JBK
    JBK Posts: 17,862 ✭✭✭✭✭
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    @rainbowstew_54 said:
    I found a Quarter Struck Through Grease, it's a 19 (cough) 5 -

    I'll bet it's 1985. :D:D

  • 1Mike1
    1Mike1 Posts: 4,445 ✭✭✭✭✭
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    @rainbowstew_54 said:
    All of you were right - it was 'Gunk' I gave it a 15 minute soak in hot water and dawn dish soap, a bird feather scrub and now she's all ready to be released back into the wild. ![]

    Good job at getting that gunk off. Some folks would just argue and not bother trying to get to the real answer. Don't get discouraged, keep searching! :)

    "May the silver waves that bear you heavenward be filled with love’s whisperings"

    "A dog breaks your heart only one time and that is when they pass on". Unknown
  • JBK
    JBK Posts: 17,862 ✭✭✭✭✭
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    Good job at getting that gunk off. Some folks would just argue and not bother trying to get to the real answer. Don't get discouraged, keep searching! :)

    The "real answer" was already given - scraping off the gunk merely illustrated it to the OP.

    How can a mound of gunk on a coin possibly be a "struck-through" error? Did the grease cause an indentation into the die, thereby allowing for a mound of the stuff to be left rising off the surface of the coin?

    When a coin is struck through grease, the grease prevents metal from flowing into the recesses on the die, or it sometimes causes an indentation or rough patch on the surface of the coin.

    It is important to visualize what occurs when an error happens. It will avoid a lot confusion when PMD is encountered. If the OP is actively looking for errors, this sort of understanding is critical.

  • CommemKing
    CommemKing Posts: 2,202 ✭✭✭✭✭
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    I think that more like "stuck on grease".

  • ChrisH821
    ChrisH821 Posts: 7,147 ✭✭✭✭✭
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    A struck through grease coin will have an element of the design missing, like a letter or other detail. The struck through material will be long gone by the time the coin is found.

    Collector, occasional seller

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