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 Replies: 39 / Views: 1,653 |
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Moderator
 United States
96025 Posts |
It does not appear to be affecting the raised devices. Can you get a nice (non-scope) image of the 'comet' The whole thing nice closeup if you can. Just the area I indicate inside the blue box.  Edited by Dearborn
06/24/2023 12:17 pm
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Pillar of the Community
 United States
6504 Posts |
As I understand it, Struck Through Grease flattens the devices to the field. Something is stuck in the crevices of the die. However, the letters and features on this coin appear to be raised correctly, straight through the anomaly. |
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Moderator
United States
96025 Posts |
Yes, Brand, that is exactly what I'm getting at. We need a better image of the area I indicated above.
Now of course on this particular design, the letters and other design elements are all incuse on the die, and if something got on the die but did not get down into the device elements, they may not get disturbed. but better images are needed here to determine that.
Edited by Dearborn
06/24/2023 3:32 pm
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Valued Member
 United States
193 Posts |
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Pillar of the Community
United States
6504 Posts |
Sorry Dearborn, when I posted, I didn't notice that there was already a second page of comments.
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Moderator
United States
96025 Posts |
Quote:
Sorry Dearborn, when I posted, I didn't notice that there was already a second page of comments. No worries, I do that all the time  |
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Moderator
United States
96025 Posts |
Thanks for the new image. Give me a bit to look it over, (after dinner).
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Moderator
United States
96025 Posts |
@Brand: Quote:As I understand it, Struck Through Grease flattens the devices to the field With a Grease Filled Die, a mint worker will on occasion grease up the dies to keep the smooth operation of the press. Sometimes the work will not completely wipe off the grease from the surface of the die and grease fills up the devices - most often the letters and numbers - this in turn will not allow the letters to strike up properly or at all. So the grease is not flattening the the devices, but instead just fills them up and won't let the metal move into the voids that were on the die. |
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Moderator
United States
96025 Posts |
So, anyway, back to this Comet coin. I need to ask if the feature that is on this coin incuse or raised?
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Valued Member
United States
193 Posts |
Definately incused. Here's another pic. Found a difficult way to get a pic with a magnifying glass..  |
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Pillar of the Community
United States
6504 Posts |
Quote:
So the grease is not flattening the the devices, but instead just fills them up and won't let the metal move into the voids that were on the die. That's what I meant. The grease in the die results in flattened or disappearing devices on the coin. |
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Pillar of the Community
United States
6504 Posts |
Anyway, that new picture definitely shows structure to the anomaly. It's not a blob. Some of those indented areas look like letters or other shapes.
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Moderator
United States
96025 Posts |
Ah, ok, I guess it was the way it was stated...
EML: Thanks for the latest image, that helps.
If this coin was an older copper cent, I would say it was a lamination. However, that is not possible on a clad quarter, Maybe a planchet flaw.
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Pillar of the Community
United States
6504 Posts |
Given that you've got a microscope, maybe check out the thing between the O in crossing and the U in Pluribus. Try both orientations. It almost looks like a readable word. There is also some kind of mangled thing under and around the H in The.
Could also be a cloud horsie. =)
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Pillar of the Community
United States
2334 Posts |
Die clash? Can't find an over lay though...?
smat
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Replies: 39 / Views: 1,653 |
First Page
Posted 06/24/2023 2:27 pm
