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 Replies: 19 / Views: 6,276 |
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Pillar of the Community
 Canada
2360 Posts |
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Valued Member
United States
331 Posts |
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Pillar of the Community
United States
6478 Posts |
 Wow. |
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Moderator
 Canada
10456 Posts |
Die deterioration... fantastic photos!
"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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Pillar of the Community
Australia
7096 Posts |
Looks like the result of a touch up of the die with a steel brush  |
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Pillar of the Community
Canada
618 Posts |
Not flow lines----flow lines are a feature of full lustre and appear on all well struck coins, formed by the very process of the strike and are microscopic. Flow lines undulate like waves on a pond---these lines are streaky in one direction. What I see here is planchet problems--possible etching.But what do I know? I need more evidence.
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Pillar of the Community
Canada
693 Posts |
Nice error coin! I think this coin has a "Starburst" error. The effect is described in this Coin World article: "Starburst," according to U.S. Mint officials, is caused by abrasive particles that accumulate and are carried by the die. During the striking process, the particles score and scratch the die while moving outward from a central point in the direction of the metal flow. These particles and scratches translate to raised areas on the struck coin. http://www.coinworld.com/numismatic...-die-t.html# |
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Moderator
Canada
10456 Posts |
Hence, deterioration of the die...  Thanks for doing the legwork on this one Joe!!  I have tweaked the thread title a bit, so we can search for this one in the future. "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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Moderator
Canada
10456 Posts |
Sometimes, these features can be quite spectacular. This is a 5-cent F. Rufiange photographed for a friend of mine. Look familiar nickelsguy??  "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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Pillar of the Community
Canada
2425 Posts |
Nice Pics SilverDon!
Beauty of a nickle Roger!
Wow !!
Edited by darryldarryl
06/19/2015 4:20 pm
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Pillar of the Community
 Canada
2360 Posts |
Quote:
Nice error coin! I think this coin has a "Starburst" error. Absolutely cool, I knew there was something special about this coin. Thanks for setting me straight on the flow lines lambecolin and to SPP for the change to the proper topic title. Nice to have the experts especially Scissel and SPP define the error. Thanks for the compliments on the pics.  The grooves made in the die which translate to raised lines seem to be localized in the fields (evident on both the nickel and the Mountie Quarter) and continue through the legends and date but are not visible on the legends. The particles making the scratches on the die must not be finding their way into the deeper recesses of the die where those devices / elements exist. Edited by SilverDon
06/19/2015 6:44 pm
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Pillar of the Community
Canada
618 Posts |
Learning something everyday----thank you everyone!
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Pillar of the Community
Canada
2360 Posts |
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Pillar of the Community
Canada
2632 Posts |
Quote:
Just playing with my phone and macro. holy macro batman..thats a lot of deterioration lol |
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Moderator
Canada
10456 Posts |
There is an excellent article in the Edmonton Numismatic Society newsletter published this month (The Planchet) on this effect, by CCF's own Scissel. http://www.edmontoncoinclub.com/Pla..._Dec2016.pdfI thought I would share this here, not only for our members, but also for future Google searches. Good job Scissel!! "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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Pillar of the Community
Canada
693 Posts |
Hey Roger. Thanks very much for your help with the photo - and for the publicity! My little local club newsletter is up to 44 pages for December. Most of it is original content. Some of our authors are expert researchers and authors. I wish that were me, but I'm nowhere near there yet. I do manage to scribble out a page or two on Canadian variety coins for each issue.
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Replies: 19 / Views: 6,276 |
Posted 06/18/2015 6:11 pm
