Flow Lines, An Abraded Die, or Improper Cleaning Hairline Scratches?

Discussion in 'Coin Chat' started by JCro57, Jun 24, 2021.

  1. JCro57

    JCro57 Making Errors Great Again

    1964 Quarter on a Nickel Planchet. Are these lines from improper cleaning, flow lines, or die polishing (abraded die) lines?

    IMG_7473 (2).JPG
     
    Last edited: Jun 24, 2021
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  3. Dougmeister

    Dougmeister Well-Known Member

    The lines go under the devices, so die polish lines, right?
     
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  4. eddiespin

    eddiespin Fast Eddie

    If they're from the die they're raised. That's what you need to determine, whether the lines are raised, to answer your question.
     
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  5. JCro57

    JCro57 Making Errors Great Again

    I rewrote the question :)
     
  6. Insider

    Insider Talent on loan from...

    There is definitely die polish. For example, the raised lines under the nose. There are probably hairlines also but when holding a coin in one position in the light or imaging it in that way make it impossible to see certain hairlines - even with magnification.
     
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  7. Morgandude11

    Morgandude11 As long as it's Silver, I'm listening

    Sure looks like die polish marks to me.
     
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  8. JCro57

    JCro57 Making Errors Great Again

    would you like me to send it to you for examination?
     
  9. Insider

    Insider Talent on loan from...

    Not necessary, don't waste the money on postage. Now that you see the raised lines under the nose, look for tiny hairlines INTO the coin by tipping and rotating it at the same time.
     
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  10. GDJMSP

    GDJMSP Numismatist Moderator

    Not necessarily always true. Post strike scratches and hairlines create both raised lines and incuse lines. And of course so do die polish lines. But they are different in nature than scratches and hairlines.

    As to the OP's question, yeah the coin has some die polish lines on it. But it has some post strike scratches and hairlines on it too. There's even some on the bust.
     
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  11. eddiespin

    eddiespin Fast Eddie

    I can dig that, as there are just too many variables.
     
  12. Insider

    Insider Talent on loan from...

    GDJMSP, posted: "Not necessarily always true. Post strike scratches and hairlines create both raised lines and incuse lines. And of course so do die polish lines. But they are different in nature than scratches and hairlines."

    This is not true at all. Doug may wish to post his comments in another way to make it more clear. ANY TYPE, ANY SEVERITY, and ANY LENGTH of post strike mark on a coin WILL BE INTO ITS SURFACE and not raised above it. The only exception I can possibly think of happens when someone takes a knife and gouges a scratch at an angle into the coin. This produces a raised surface next to the furrow. Ignorant folks these damaged coins were struck with a "cancelled die!"

    TRUE: As to the OP's question, yeah the coin has some die polish lines on it. But it has some post strike scratches and hairlines on it too. There's even some on the bust.
     
  13. GDJMSP

    GDJMSP Numismatist Moderator

    I'm sorry but it is true. Any scratch, any hairline, they all displace metal. And that displaced metal doesn't just magically disappear, it has to go someplace. And the someplace it goes is into a raised line right beside the incuse line.
     
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  14. JCro57

    JCro57 Making Errors Great Again

    I agree. It's the equivalent of running your finger on a clay object (unhardened, of course). Creating the depression means the clay in that area has to go somewhere, thus it displaces and raises along the outer perimeter.
     
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  15. Insider

    Insider Talent on loan from...

  16. green18

    green18 Unknown member Sweet on Commemorative Coins

    Definitely not 'flow lines'.......MHO
     
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  17. JCro57

    JCro57 Making Errors Great Again

    i can't tell what those emojis are or what this is supposed to mean
     
  18. Insider

    Insider Talent on loan from...

    :troll: Well it didn't work. Good Morning. It is a bad day when I come to coin talk and get no alerts. I expected to get a good discussion going and raise the old :bookworm: guy from the dead. :D

    I do not teach that scratches appear as raised lines on a coin for the simple reason that 98% of the time they don't appear as raised lines that you can see. That's why I used the commonly seen deep angular & intentional scratch (fake cancelled die) that DOES APPEAR raised.

    Now. If we look at a hairline at 400X it will have raised sides. If wee look at a scratch at 100+X it will have raised sides. Add a slight amount of circulation and the "sides" are gone. Large deep scratched will have raised sides until they are worn down but there is no way a person with knowledge will mistake one of these marks for die polish!

    One hint: Very often the end of a scratch will have a raised "burr" at the furthest tip from where it started from "displaced metal" that is visible.
     
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  19. GDJMSP

    GDJMSP Numismatist Moderator

    Oh don't worry Mike. Your wife always makes sure "I'm awakened" when somebody is needed to keep an eye on you. :D
     
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  20. Insider

    Insider Talent on loan from...

    She's been acting very suspicious. Asking me :watching: a lot about you. I've also noticed the mileage on her "fun" transportation (yellow Beetle convertible) is going through the roof!
     
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  21. GDJMSP

    GDJMSP Numismatist Moderator

    Don't worry Mike. She's just wanting to make sure that at your age - you can still remember things. So she enlists the aid of friends to help out with things like that ;)
     
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