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 Replies: 26 / Views: 5,238 |
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Pillar of the Community
United States
3479 Posts |
Poll Question
Halos around the edges of devices have been said to indicate cleaning. Yet there are two very distinct types of halo effects that occur on a coin's surface.
1) Halos around the edges of the devices that are lighter in color than the fields.
2) Halos around the edges of the devices and stars that are darker in color than the fields.
Which of the two do you guys think indicates cleaning?
Edited by MikeF
02/10/2018 02:26 am
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Moderator
 United States
14463 Posts |
I voted in this new thread/poll. There were a total of 5 members that voted in the last one, including the thread/poll creator and me.  EDIT - the poll hasn't really changed, MikeF cleared up some confusion I had with the choices.  EDIT#2 - All 5 members that voted in the last poll, have voted in this updated version.  |
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Pillar of the Community
United States
5825 Posts |
Option 4: It depends; case by case.
Edited by kanga
02/10/2018 08:38 am
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Pillar of the Community
 United States
3479 Posts |
Quote:
Option 4: It depends; case by case. Duly noted but I'm leaving the voting options as is. I you or anyone else has images that illustrate why it should be on a case by case basis, then by all means, please upload the pictures to demonstrate.  |
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Moderator
United States
23522 Posts |
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Option 4: It depends; case by case.
This; if the evidence had the same cause and the same result every time, we wouldn't ever be surprised by what we see on the label of a slab. Two identical coins can patinate entirely differently under two sets of conditions. There are a thousand ways to clean a coin, each ending in slightly different chemical conditions on the resulting coin's surface. All of these will react to the vast array of potential atmospheric effects differently. Not even the expert can always "know it when they see it." |
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Pillar of the Community
United States
1261 Posts |
 I could show examples of images of both types that I believe to be original. MikeF has a point though because we frequently see comments like "the halo around the stars is indicative of a past cleaning." While this statement can be true it's not absolute and can be misleading. It frustrates me sometimes when I see it in a post. |
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Pillar of the Community
United States
8715 Posts |
Halos around the devices cannot automatically be said to be a result of cleaning. I could post several examples with both types of halos that I think have original surfaces. But I went ahead and voted for the most likely one. |
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Valued Member
United States
275 Posts |
I love this poll, both clever and very legitimate. I voted minority btw. These two photos are of the same coin under the same light -- one shows darker halos, the other shows lighter.   |
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Pillar of the Community
United States
4468 Posts |
Light and dark halos can be created by cleaning. Many examples show the dark halos by cleaning. The light halo can be created by a coin having dirt around the stars then being stored and toned. After toning, the dirt around the stars is removed by cleaning. The result is a light halo around the stars because the dirt prevented the same toning as the rest of the coin. My vote #4 it depends.
Edited by Slider23
02/10/2018 10:25 am
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Pillar of the Community
United States
3479 Posts |
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I could post several examples with both types of halos that I think have original surfaces. No no no... I think you misunderstood. I want to see examples. Please, post away! All pictures are more than welcome, folks!! This is a discussion that needs to be had. Even if you don't vote, feel free to chime in! Edited by MikeF
02/10/2018 10:34 am
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Pillar of the Community
United States
2023 Posts |
I see where Dlangs56 is going with those lighting pics above, but the halos are still dark in each of them at the edges of the devices (where the key indication is, not further into the field).
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Pillar of the Community
United States
8715 Posts |
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No no no... I think you misunderstood. I want to see examples. Please, post away! Here are some examples, both CAC approved.   |
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Pillar of the Community
United States
2023 Posts |
That first one with the light halos is graded MS62. Wouldn't that mean it has not been cleaned, since it has a numeric grade?
Edit to clarify: We're talking about halos as indicators. That's not to suggest that the presence of halos necessarily means that it has been cleaned. But cleaning that does leave halos would leave those that are either lighter or darker -- that is the question as I understand it.
Edited by Alpha2814
02/10/2018 12:29 pm
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Pillar of the Community
United States
8715 Posts |
Quote:
That first one with the light halos is graded MS62. Wouldn't that mean it has not been cleaned, since it has a numeric grade? I think that you misunderstood what I was trying to say. I was posting the imges of both coins to show that a coin that has both light or dark halos can be a coin with original surfaces. A halo of any color does not necessarily mean that a coin has been cleaned. |
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Bedrock of the Community
13014 Posts |
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Pillar of the Community
United States
3479 Posts |
How about this Trade dollar? Luster and lighter halos appear around the edges of the devices. Is it from cleaning?   |
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Replies: 26 / Views: 5,238 |
Posted 02/10/2018 08:38 am
