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 Replies: 24 / Views: 4,098 |
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Pillar of the Community
United States
1249 Posts |
Perfect overlay coop thanks really helps to be able to visualize what makes contact and where
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Valued Member
 United States
261 Posts |
Hey Coop
I can certainly see now what COULD have caused clashes including the date on the right end and the coat under the roof. I guess I need a lesson on die polishing. In many cases scratches are pointed out. I don't see that on my coin. Some of you see obvious polishing and I am puzzled by how to tell that. What tools do the mint employees use to polish out clashes and other flaws on the dies once they find the problem. That might help me understand what to look for.
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Pillar of the Community
United States
1249 Posts |
Not even that it is once you looked at a million pennies and seen all these posts a thousand times you will know I promise you. To answer your question what tools they use I have no idea HA. I would imaging some sort of handheld rotary tool like a Dremel tool. I would imagine you would have to do your tool work under a magnifying glass like I do when soldering small electrical components.
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Valued Member
United States
261 Posts |
Thanks Tweak800 For sure a penny is very small. Maybe something like the Hubble telescope  would give the best view. |
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Bedrock of the Community
United States
62064 Posts |
Here are a few images: Die buffing with ?  Not sure, but looks solid. Also die are polished: (Proof dies)    But on the business strike coins, it seems like a wire brush may be employed/sanding as there are some many die scratches on the MDS dies. But somehow they removed the fields of the dies to the point that shallow and sometimes mid devices are thinned. The dies are steel, so something strong must be used. |
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Valued Member
United States
261 Posts |
Thanks Coop
Things are getting a little clearer now. From what I can see, except for the ends and between the roof and the building, most of the polishing must be in the fields. Above ONE CENT where Lincolns head would be in a clash does now look to me to be polished.
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Bedrock of the Community
United States
62064 Posts |
Sometimes localized polishing/buffing really works the dies over:  When the devices get so thin, then the fields are really being reduced. The rest of the date is normal there, so it was localized to remove some event to the die. |
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Pillar of the Community
United States
5964 Posts |
Neat coin, Pete41. I like it a lot. I agree it was more than likely caused by polishing out a clash. It was almost unavoidable to overpolish in that area. Note the hand of the man with the striped tie in the picture Coop posted. He may be a former overly zealous polisher. lol. Here is a picture of my 69-D.  |
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Valued Member
United States
261 Posts |
Thanks CoinMasters! I like yours too and I certainly got a good education from my original post. I hadn't even recognized there was floating roof on my coin. And thanks to all the contributors to this thread.  |
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Replies: 24 / Views: 4,098 |
First Page
Posted 10/28/2015 10:22 pm
