Ceaning or Die polish

Discussion in 'Coin Chat' started by Steve66, Dec 12, 2014.

  1. Steve66

    Steve66 Coin People

    Hello folks,
    Can someone tell me if the lines on this coin are cleaning or die polish marks.
    I would appreciate the help.
    IMG_7769.jpg IMG_7779.jpg IMG_7780.jpg
     
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  3. tommyc03

    tommyc03 Senior Member

    Everyone else seems to have gone to bed so I will guess die scratches.
     
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  4. Mainebill

    Mainebill Bethany Danielle

    That appears to be from cleaning the scratches go from the fields to the devices while die polish lines are usuay just the fields as the devices are recessed not raised
     
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  5. Steve66

    Steve66 Coin People

    I cant take very good pics, but Nearly all of the lines that I'm seeing are in the fields and not on the raised areas. The lines also do not cover the whole coin, like I have seen on other cleaned coins. They are just here & there.
     
  6. cpm9ball

    cpm9ball CANNOT RE-MEMBER

    Your photos should be taken from directly overhead and show the whole coin. While improper cleaning or polishing may be restricted to one small area, it is helpful to judge it by viewing the entire coin.

    Chris
     
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  7. ksparrow

    ksparrow Coin Hoarder Supporter

    Most of what I'm seeing looks like die polish: patches of short lines that end at the raised devices. Only the first photo shows a few widely spaced hairlines crossing a shield like device.
     
  8. -jeffB

    -jeffB Greshams LEO Supporter

    On that last photo, there are a number of parallel deep scratches beneath the horse's hooves that are clearly incuse. In the first (obverse) photo, some of the lines look like they're raised from the coin's surface (i.e. die scratches or polish marks), but it looks like there are really deep gouges in the field between "R G" and the bust.

    I'm going to have to go with "extremely harsh cleaning". :(
     
  9. GDJMSP

    GDJMSP Numismatist Moderator

    There are many different things besides a harsh cleaning that can cause scratches and hairlines on a coin. Simple rough or careless handling causes them. Sliding a coin across a counter or table can cause them, wiping a coin with a cloth can cause them, even wiping a coin with your finger can cause them. The possible causes are pretty much endless.

    It is also important to realize that it is extremely common to find coins where only the fields, or only the devices, as well as both, will show hairlines and light scratches from rough handling and or harsh cleaning. And it is even more important to realize and understand that any and every scratch or hairline on a coin, regardless of its cause, creates both a raised line and an incuse line on the surface of the coin. This is simple physics, you cannot have one without also having the other.

    I'm saying this because people use certain diagnostics to determine if the lines on a coin are the result of die polishing or post strike damage. But some of the most commonly used diagnostics will not always determine one from the other. So it then becomes important to know what diagnostics will determine one from the other. And they are fairly simple.

    Lines caused by die polishing cannot criss cross, they are always parallel to each other - always. That said, it is common to find lines on a coin that were caused by both die polishing, and post strike damage (scratches and hairlines caused by other things). And rather obviously the post strike lines can criss cross the lines caused by die polishing. But when that is seen, the lines caused post strike are often ignored and incorrectly attributed to the die polishing as well.

    Lines on a coin caused by die polishing also have a certain look that is distinctly different from lines caused by post strike damage. It is hard to explain in words and is something that is best learned by in hand experience. But the trained eye can easily distinguish one from the other.

    That said, if you look at the 2nd and 3rd picture of the OP's coin you will see spots above the horse's legs and below its head. It is my belief that there were probably similar spots elsewhere on the coin that somebody tried to wipe off the coin by using a cloth, resulting in the lines seen on the coin in various places.

    So no, those lines were not caused by die polishing.
     
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  10. mercedes86david

    mercedes86david New Member

    looks like someone took a rag to it and tried to clean it
     
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  11. Steve66

    Steve66 Coin People

  12. GDJMSP

    GDJMSP Numismatist Moderator

    That group of pictures confirms what I said above, You can even see the remains of the spots where they tried to remove them.
     
  13. Steve66

    Steve66 Coin People

  14. GDJMSP

    GDJMSP Numismatist Moderator

    And it is.
     
  15. physics-fan3.14

    physics-fan3.14 You got any more of them.... prooflikes?

    Funny how the "cleaning" hairlines on the OP's coin are identical to the "cleaning" hairlines on the coin posted on Ebay.

    I'm not arguing that the OP coin has not been cleaned - there appear to be hairlines from cleaning on it. But I'm not nearly as convinced as you are that they aren't die polish. There appears to be some of both going on.

    The coin on Ebay does not appear to have been cleaned - that is all die polish.

    And die polish lines can, and absolutely do, criss cross each other. They can also travel up onto the devices.
     
  16. ksparrow

    ksparrow Coin Hoarder Supporter

    Interesting, though that the second coin has patches of lines in the same locations as the one in the OP. The only area of concern to me as far as cleaning is under the bust truncation. In the second coin this area is toned and difficult to evaluate. So, I still think that most of what I'm seeing is die polish.
    (I was still composing while Jason was posting)
     
  17. Steve66

    Steve66 Coin People

    .
    There are some abrasions on my coin (I believe from the packaging it was in) but other than that, it pretty much looks like the coin on ebay.
    Why do you think mine has been cleaned and the other has not?
     
  18. bsowa1029

    bsowa1029 Franklin Half Addict

    They may not specifically be from a cleaning, but those are definitely scratches from the coin being rubbed by something.
    Die polish lines will be raised metal on the surface of the coin.
     
  19. GDJMSP

    GDJMSP Numismatist Moderator

    Sorry but you are wrong, on both counts.
     
  20. ksparrow

    ksparrow Coin Hoarder Supporter

  21. tommyc03

    tommyc03 Senior Member

    With this back and forth about die polish lines going any which way, is someone standing over the polisher at the mint in the tool room every second to see if they always follow procedure. Or are the dies polished while in the press always? Just curious. I'm seeing die scratches above the shield and B in the top photo (raised lines) and cleaning marks.
     
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