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 Replies: 22 / Views: 3,044 |
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Valued Member
United States
460 Posts |
Interesting article Mike, thanks for sharing.
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Valued Member
Canada
284 Posts |
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Pillar of the Community
 United States
2738 Posts |
On the December quarter you provided a link to, I only see a curved crease but no transferred design elements. My ability to read French has deteriorated due to disuse, so perhaps there may be more information about said elements in the description.
Error coin writer and researcher.
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Valued Member
Canada
284 Posts |
Yeah it's difficult to take a nice picture of it. I'll try tomorrow to take a good one and I'll post it here. In hand though, you can see some elements of the design transfered.
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Valued Member
Canada
284 Posts |
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Pillar of the Community
United States
2738 Posts |
Wonderful. The illustrations seem to be depicting four different counterclashes among these December 1999 quarters. Is that correct? Or is it that there are four different counterclashes affecting the same die?
Error coin writer and researcher.
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Valued Member
Canada
306 Posts |
Hi Sir Mike Diamond
Your question:
The illustrations seem to be depicting four different counterclashes among these December 1999 quarters. Is that correct? Or is it that there are four different counterclashes affecting the same die?
I made the study of these brands and they are all on the same coin and affecting de same working die.
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Pillar of the Community
United States
2738 Posts |
Wow. If you could loan me a specimen, I'd like to write it up for Coin World. Also, has this counterclash been written up elsewhere? Error coin writer and researcher.
Edited by mikediamond
04/13/2014 3:34 pm
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Valued Member
Canada
306 Posts |
Hello Sir Diamond I often study defect on coin that are sent to me by members of http://www.numicanada.com/This coin I have not in hand unfortunately because it would have made me happy to send to you. I did the same studies for parts of July and September. I do not think it is possible that is the "Counterclash Type II" for these errors. For me there is only the method of hobbing work by the "Working hub" that can give these results the mentioned month. I put pictures of what I see and believe possible for July and September. Photos for December are in the links is in the other message. You will notice that there are three coins with defect from three different die.   |
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Pillar of the Community
United States
2738 Posts |
It is a pity you do not have a specimen. I will keep my eyes open for one. While there is admitted weakness in the counterclash theory, an errant hubbing is even more fraught with difficulty. A misligned hubbing on a first attempt is seemingly impossible, given the cone-shaped face of the blank working die. A faint hubbing on a second attempt is also seemingly impossible, since the extra elements are as wide or even wider than the normal elements. Faintly hubbed elements should be quite a bit thinner. The highly localized nature of some of these extra elements is also difficult to reconcile with a hubbing mishap, especially those that come from the periphery of the design.
Error coin writer and researcher.
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Valued Member
Canada
284 Posts |
The 4 different coins have this phenomena happening on the reverse. I have yet to see one on the obverse. Any hypothesis as to why that might be?
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Pillar of the Community
United States
2738 Posts |
I haven't got a clue. United States counterclashes have been found on both faces.
Error coin writer and researcher.
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Pillar of the Community
Canada
2632 Posts |
Interesting read great post  Quote:
I have yet to see one on the obverse. Could any of this have to do with improperly annealed die's (reverse)? just asking thanks edit I read in the initial article Mike dosent know of any kind of metal that is stiff enough and yet able to flow, What about a combination of the metal with a improperly made die. If the die was a little softer than normal what could happen in this scenario? Edited by Alexer
04/15/2014 11:04 pm
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Moderator
 Canada
10460 Posts |
"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
Edited by SPP-Ottawa
04/15/2014 2:33 pm
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Pillar of the Community
United States
2738 Posts |
Impressive. Thanks for alerting us to this find.
Error coin writer and researcher.
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Replies: 22 / Views: 3,044 |
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Posted 04/13/2014 09:31 am
