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 Replies: 17 / Views: 5,500 |
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Pillar of the Community
Canada
572 Posts |
At the center of the loon, there is a circle with steel color. There is a smaller one below the Queen's neck, too. Is this a kind of discoloration or damage? Thanks.   |
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Pillar of the Community
United States
802 Posts |
Another coin was probably sitting on top of it with some residue, glue, chemical... that's my guess.
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Pillar of the Community
Canada
3692 Posts |
Car cigarette lighter? Looks burned and oxidized.
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Pillar of the Community
 Canada
572 Posts |
Thanks for quick responses. It is shiny steel/nickel color however my scanner didn't pick it up. Is the bronze plating can be scratched off easily?
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Pillar of the Community
Canada
3692 Posts |
The detail on the trees and loon are still there so I doubt the plating was simply "scratched off". Melting point of Nickel: 1455°C, 2651°F Melting point of Bronze: 950°C, 1750°F I have a buddy who likes to mess around melting metals but I find it too dangerous. Next time I see him I'll make him try out some experiments - in the name of science, of course.  Edited by Libertad
08/20/2012 3:45 pm
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Pillar of the Community
Philippines
1156 Posts |
acid burn perhaps or long term soap exposure (with lye)... just a guess....
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Pillar of the Community
United States
1088 Posts |
I have seen this a few times. usually another coin was on top of it and something was between them... could of been soda like coke cola or something.
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Pillar of the Community
Canada
572 Posts |
Thanks, guys! The information is very helpful. I'll let it go back to circulation today. See if another curious person like me will raise the same question in a few months. :)
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Pillar of the Community
Canada
632 Posts |
Post-mint damage due to chemical attack. There may be heat involved but the heating may have been caused by the chemical reaction itself. Some spillage may have caused the damage on the obverse. Wonder if this is not the result of a high-school project gone wrong. I have some neat coins resulting from good high-school projects. At any rate, whatever the cause, a good example of PMD. I like it. Thanks for posting |
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Pillar of the Community
Canada
572 Posts |
Thanks, t_y. There is no value of it, isn't there?
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Pillar of the Community
Canada
632 Posts |
Of course! one buck I always recommend to keep good examples of PMD. They help protecting other collectors from making mistakes and jumping into conclusions. Also, it is a VERY cheap way of building a different and interesting collection. Mine is already close to 300 coins |
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Pillar of the Community
Canada
572 Posts |
It's surely interesting. However I try to narrow down my collection to reduce the cost. I would like to send it to your way only if it is worth the postage.
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Pillar of the Community
Canada
632 Posts |
For me it worth, but I don't like the idea of people thinking I reply to posts just to get coins.
I prefer to decline your generous offer.
Thank you
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Pillar of the Community
Canada
572 Posts |
I wasn't thinking of that. Next time I'll remember to do it in a more courteous way. Thank you for pointing it out and all your replies.
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Pillar of the Community
Canada
632 Posts |
You were not impolite! Sorry if I gave the impression!
The problem is of another kind: in many cases people post PMDs or minor errors thinking they are rich or that their coins worth a fortune. When you come and reply saying that the coin worth face or that they paid too much for a minor defect, they get angry based on the belief that we belittle coins to buy them cheap later.
Very recently I decided to participate more actively on this site. I want to be useful to the community, giving back what I learned. To do so, I have to protect a bit any credibility that I may have.
I truly appreciated your offer and I thank you again.
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Pillar of the Community
Canada
572 Posts |
What you doing there makes you big. I for sure appreciate your input. Hopefully one day I could win a jackpot and you can confirm it. :)
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Replies: 17 / Views: 5,500 |
Posted 08/20/2012 2:38 pm
