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 Replies: 23 / Views: 3,678 |
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Pillar of the Community
Canada
870 Posts |
This is just cool...    Either this just missed some of the final plating or it was struck through copper flakes. I suspect missed plating because of the depression on the rim. It is not scraped at all in case you were thinking that. It is smooth across the face of the coin. No matter what it is...it's cool! X men meets Olympic flame!  |
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Pillar of the Community
 Canada
9863 Posts |
Cool! But sure looks like PMD in the pic, especially at the rim. "Dipping" is not considered cleaning...
-from PCGS website
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Pillar of the Community
Canada
2845 Posts |
I think it's really cool as well, very interesting conversation piece. At first glance it appears the flames have been intentionally painted with visible brush strokes, but impossible to tell from a photo. If your source was anything other than a sealed mint roll, if it were me I might be very tempted to test the small smudge below the arm with acetone on a Qtip.
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Valued Member
Canada
257 Posts |
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Pillar of the Community
Canada
1192 Posts |
Can't go wrong at $1.25 with free shipping. Unless you were the seller! :(
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Pillar of the Community
 Canada
870 Posts |
Yes I paid only $1.25 for it :)
I will try to get better pictures posted this weekend.
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Pillar of the Community
Canada
2845 Posts |
The brush strokes look exactly like copper coloured enamel nail polish. For $1.25, that's likely how the "flame" was created.
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Pillar of the Community
Canada
870 Posts |
Hello all. I finally got some acetone and tried to remove the possible copper coloured nail polish. Absolutely nothing happened and the coin remains the same. When I look at the coin, it does look directional even like a scrape but the copper flows across all the devices, the fields, and where they meet. A scrape would not do that but a copper flake or missed plating would. But I admit it still doesn't look right.  Anybody have any other suggestions? Here is another pic.  |
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Pillar of the Community
Canada
2632 Posts |
If it was struck through copper flake then IMO the copper was on the planchet before it was struck thus the rim looking nick. Here are a couple other coins struck through with copper... https://goccf.com/t/161264 |
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Pillar of the Community
Canada
870 Posts |
Any other comments on this coin? Or ideas? I am still stumped. |
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Pillar of the Community
Canada
2845 Posts |
Just tossing in another one.....if it's not painted then perhaps the top layer of nickel was stripped by using some type of chemical what was brushed on, revealing but not harming the thin copper undercoating? It seems the removal of metal coatings is quite common in certain refinishing industries so folks with the expertise might be inclined to experiement? On another site it was also mentioned muratic acid (extremely corrosive!) removes nickel coatings but only etches copper. http://www.finishing.com/214/22.shtml |
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Pillar of the Community
Canada
1192 Posts |
Canadian quarters from 2000 to present are made of an alloy of 94% steel, 3.8% copper. With 2.2% nickel plating over top. Thus it's not possible for it to be scratched/acid burnt through the nickel to reveal what looks like pure copper. Underneath the nickel plating is a steel color.
Struck through copper scraps/bits seems the most likely explanation.
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Pillar of the Community
Canada
1980 Posts |
doesn't the coin go through 2 different dies? one for rim and one for design? if thats true I'm going with PMD as I highly doubt it would be struck over copper flakes in 2 different operations |
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Pillar of the Community
Canada
5324 Posts |
Just poor plating for this planchet if it's not paint, copper is showing through
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Pillar of the Community
Canada
2845 Posts |
Quote:
Canadian quarters from 2000 to present are made of an alloy of 94% steel, 3.8% copper. With 2.2% nickel plating over top. Thus it's not possible for it to be scratched/acid burnt through the nickel to reveal what looks like pure copper. Underneath the nickel plating is a steel color. @Pokermandude. Thanks for sharing this info. An alloy of steel and 3.8% copper definately wouldn't appear copper coloured, under a layer of nickel. Yes indeed, rules out both the scratch and acid theory. Another possibility is something applied overtop..but not ordinarily paint or nail polish. What other type of application can be brushed on but is not dissolved by acetone? |
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Pillar of the Community
Canada
870 Posts |
I thought that these quarters were produced using the multi ply plating process. Steel core, nickel plating, copper plating, final nickel plating. Coins and Canada site calls it an alloy but it calls all plated coins "alloy"
I have a quarter here in my desk at work. I just scratched it with a knife and I can see copper.
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Replies: 23 / Views: 3,678 |
Posted 07/16/2016 9:22 pm
likely 
