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 Replies: 11 / Views: 1,817 |
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Valued Member
Canada
234 Posts |
This coin has been found in a Mint roll. It's a very nice example of a die damage. My guess is that the damage is caused by the feeder finger that scrapes the die. See ref: http://www.error-ref.com/die-scrapes/This is actually my best one with this kind of error. I found couple of them in the same roll with few variations.   |
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Moderator
 United States
56855 Posts |
 to CCF. Nice. John1  |
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Pillar of the Community
Canada
891 Posts |
Nice coin, it's always a good idea to post photos of the whole coin, both sides as well as the area of interest |
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Pillar of the Community
United States
7027 Posts |
Looks like it was minted on an extremely windy day..  ...nice looking coin from what is shown...entire photo of coin, Please to CCF Edited by Greasy Fingers
02/07/2020 11:06 am
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Valued Member
 Canada
234 Posts |
As requested, pictures of the full coins. As you will see this coin from mint roll is not with the best quality. Many marks and scratch on the obverse. There is small die damages between the front and "D". Maybe we also see some "Struck Through" at few locations.   |
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Moderator
Canada
10458 Posts |
You also see that on 5c and 50c coins in the mid 1990s, but I am not exactly sure why...
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Valued Member
Canada
128 Posts |
Could thi be bad polishing?
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Valued Member
Canada
234 Posts |
I don't think so. Polishing problems have different signatures.
I've extracted about 10 coins with various levels of similar damage. I have to take some times for a deep analysis of these coins. I will try to show you soon.
For now, my best guess is that the damages are a result of the feeder finger scraping across the die few times, creating variations in my coins.
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Moderator
United States
56855 Posts |
From what I have seen in the past,feeder finger damage happens on one side of a coin. Yours has it on both sides so I am going to guess it is abrasion damage from trying to remove die clash marks,just a guess though. John1 |
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Valued Member
Canada
234 Posts |
You will find here 8 coins I found with different levels of die damage. I tried to keep the same lightning conditions. All of them have been extracted from the same Mint roll. It seems to be clear that something happended during the mint process that cannot be explained by the die polishing. I think the feeder finger is guilty. For now this is the only way I found to explain the damage evolution. It's not clear at time that all coins are from the same die pair. Coin 1  Coin 2  Coin 3  Coin 4  Coin 5  Coin 6  Coin 7  Coin 8  Edited by SP67
02/08/2020 11:09 am
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Pillar of the Community
United States
5825 Posts |
I would have guessed that the lines were from the die being polished to remove the contact marks from a clashed die.
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Valued Member
Canada
234 Posts |
I don't think it's a polishing problem. That would mean there have been at least 8 polishing activities to explain the progression. That would be unlikely. IMHO  Edited by SP67
02/08/2020 10:45 am
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Replies: 11 / Views: 1,817 |
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Posted 02/07/2020 10:39 am
