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 Replies: 17 / Views: 3,799 |
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New Member
Canada
25 Posts |
Partial plating errors? Thank you.  |
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New Member
 Canada
25 Posts |
Look like White Swan (or White Loonie :-) An interesting coin.
Edited by CoinsCoins777
04/01/2016 5:21 pm
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Moderator
 Canada
10458 Posts |
The plating is quite thick on a loon... what is the weight?
"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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New Member
Canada
25 Posts |
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New Member
Canada
25 Posts |
Add pictures   |
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Moderator
Canada
10458 Posts |
Looks like bulls-eye toning maybe?
"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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New Member
Canada
25 Posts |
Max light picture. Loonie is nickel/silver color without gold color. Thank you.  |
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Pillar of the Community
Canada
706 Posts |
It could be end of roll toning.
I have the same type of toning on an end of roll Loonie.
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Pillar of the Community
Canada
2845 Posts |
Is it possible for bronze or brass toning to appear silver coloured? I've never heard of that before. "When introduced, loonie coins were made of Aureate, a bronze-electroplated nickel combination. Beginning in 2007, some loonie blanks also began to be produced with a cyanide-free brass plating process." https://en.m.wikipedia.org/wiki/Loonie |
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New Member
Canada
25 Posts |
This is not a toning zone. Look like "bronze-electroplated nickel combination" missing bronze. This coin is very bright. It is a very clean coins without peeling. Maybe nickel bubble explosion in the process. There is a competition between the loonie and the beaver :-). Thank you.  Edited by CoinsCoins777
04/03/2016 05:31 am
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New Member
Canada
25 Posts |
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Pillar of the Community
Canada
955 Posts |
Quote:
There is a competition between the loonie
and the beaver Picked a Nickel with that couple of weeks ago  and yes , the link was interesting Edited by Canacoins
04/03/2016 11:52 pm
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Pillar of the Community
Canada
2632 Posts |
If you go to youtube and watch some industrial plating vids, then google "what can go wrong while electroplating", then you will easily understand what happens to some of these coins. Mint workers pick out any planchets that dont look right but some get through.
Over the past couple years I've watched many such vids and read many pages about plating and now I dont even question how a possible plating error could occur and get through.
But
With that said I also know that a coin sitting at the bottom of an outdoor swimming pool (and in some cases a coin fountain) can become very brilliant and change color. A combination of water and the chemicals in it, along with underwater magnification of direct sunlight can alter the surface of some coins giving them a super shinny appearance and often a change in color on copper and brass colored coins. I've seen this first hand.
If I had your coin in hand I might venture to speculate which it is if either because it could be toning as well, either way its minor.
Just my opinion.
Edited by Alexer
04/04/2016 12:55 am
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Pillar of the Community
Canada
706 Posts |
  This is my loonie I pulled from the end of the roll. One side is completely uncirculated and normal colored. The other side is one hot mess with silver toning. lol |
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Pillar of the Community
Canada
2845 Posts |
Quote:
This is my loonie I pulled from the end of the roll. One side is completely uncirculated and normal colored. The other side is one hot mess with silver toning. lol
If bronze tones to silver, why aren't all older loonies beginning to turn a silver colour by now as well? Adding: So bronze is an alloy made from copper traditionally mixed with a slight bit of tin, although aluminum or manganese may be substituted as well. The core of the loonies of this era was nickel. I'd expect it to be far more likely that the silver colour is from one of those base metals, considering copper darkens with age and by exposure to light, accounting for the darkened toning of older loonies. Edited by wildflowerAB
04/04/2016 10:10 am
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Pillar of the Community
Canada
5324 Posts |
Most likely the planchet roll was improperly mixed and created this streak, kind of cool on a loonie, worth a few bucks.
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Replies: 17 / Views: 3,799 |
Posted 04/01/2016 6:26 pm
