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 Replies: 23 / Views: 3,685 |
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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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Pillar of the Community
Canada
5324 Posts |
If you get a chance to visit the RCM Winnipeg you will see large rolls of punched out steel rolls being returned to get recycled, one would guess this coin was pouched out of a poorly mixed roll. |
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Pillar of the Community
Canada
2845 Posts |
Quote:
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.
Your pursuit of possibilities for your 25c is very interesting. If it's not PMD, the odds are astronomical for a mint error with the appearance and exact placement of Cindy Klassen bearing an Olympic torch. Had you considered submitting it for certification? |
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Pillar of the Community
Canada
5324 Posts |
In my opinion only if this is a plating error, it's so minor not worth the cost of cert
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Pillar of the Community
Canada
870 Posts |
I appreciate everyone's opinion. Thank you. I will file it with a question mark  I guess. I won't send it for certification. Not worth it. More than anything, I like to post coins that get a healthy debate going, especially one that could go either way. The value of the coin is irrelevant. The value of this site is priceless! It was a fun piece to post and discuss.  |
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Pillar of the Community
Canada
2845 Posts |
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In my opinion only if this is a plating error, it's so minor not worth the cost of cert
I know we disagree over the appeal of certain errors (let's not talk packaging LOL!) but if this 25c indeed is a mint error, I think because of what it portrays it's very unique, far more so than a typical nondescript plating error. |
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Pillar of the Community
Canada
870 Posts |
Well thanks to SPP for taking a look at this coin for me and confirming that this is truly a plating error. Maybe there isn't much monetary value to this coin, but I think it's pretty darn cool!
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Pillar of the Community
Canada
1624 Posts |
Neat, thanks for the follow up!
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Pillar of the Community
Canada
2845 Posts |
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but I think it's pretty darn cool! It sure is, an unusually suitable error that I think most any collector would be very happy to own, including me. Thanks for the update! And so the copper is an actual thin layer, that's also good to know. |
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Posted 08/04/2016 3:40 pm
