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 Replies: 23 / Views: 4,179 |
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Pillar of the Community
Canada
5324 Posts |
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Valued Member
 United States
212 Posts |
Okay, so it could be toning but basically nobody knows or could know. Thanks yall!
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Pillar of the Community
United States
7055 Posts |
Reverse is super cool looking
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New Member
Canada
1 Posts |
Hello: I had a few older Canadian pennies that sat in a vinyl folder for 25+ years turn blue like this. Could be a chemical reaction between the plastic and the copper. In fact, looking through my book I have a 1946 penny that has deep blue/violet toning on the maple leafs.
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Valued Member
United States
212 Posts |
Ooo, any chance you could snap and upload a few shots of it? I would love to see one in better shape than mine.
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Pillar of the Community
United States
2403 Posts |
Quote:
I had a few older Canadian pennies that sat in a vinyl folder for 25+ years turn blue like this. Could be a chemical reaction between the plastic and the copper. In fact, looking through my book I have a 1946 penny that has deep blue/violet toning on the maple leafs. This was my first thought when I saw the obverse. I have seen some Canadian Small cents tone violets and even deep purples if you leave em in books long enough. This could be just an early stage of this. Here is one from my collection that I am pretty sure stayed in a folder for decades.  |
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Bedrock of the Community
Australia
21788 Posts |
Given the right circumstances of concentration, temperature and exposure,
detergent is capable of achieving the result seen here.
Copper sulfate is blue in color.
Edited by sel_69l
12/20/2019 03:23 am
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Pillar of the Community
Canada
822 Posts |
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Moderator
 Canada
10459 Posts |
1-cent coins from the WWII era are prone to toning. In fact, some years are darn hard to find in bright red. The early PL 1-cent coins can also get some lovely tones. I have a lovely blue 1954 SF cent I'll have to photograph. https://www.PCGS.com/cert/38157736 "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
United States
212 Posts |
OH man yall are killing me. KNOCKOUT cents!!
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Pillar of the Community
Canada
822 Posts |
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Bedrock of the Community
Australia
21788 Posts |
I have seen some beautiful rainbow toning over brilliant red uncirculated bronze coins.
Sometimes, very attractive toning can be achieved by
wrapping the coin in chlorinated bleached white paper, and leaving on a window sill in sunny conditions for a few weeks.
Preserve in an airtight capsule, when you have the degree of toning you want.
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Moderator
United States
189142 Posts |
AnOldPenny:  to the Community! |
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New Member
Canada
8 Posts |
Crayola markers. But probably not. It looks like anodizing. Various thicknesses of oxidation will refract light differently causing the different colours. I didn't read through this thread so my apologies if someone else mentioned this already.
Edited by QwertySilver
01/03/2020 9:43 pm
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Pillar of the Community
United States
3660 Posts |
A close color could be achieved by a bronze coin sitting in an aquarium tank that was de-Chlorinated with Sodium Thiosulfate.
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Replies: 23 / Views: 4,179 |
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First Page
Posted 12/18/2019 9:45 pm
