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All Forums Category: General Numismatic Forums Forum: Main Coin Forum

Blacked Surface Copper Nickel Coin

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Author Previous TopicReplies: 3 / Views: 898Next Topic  
chronos
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Lebanon
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 Posted 09/09/2021  09:33 am Show Profile   Bookmark this topic Add chronos to your friends list Get a Link to this Message Number of Subscribers
Hello
I have one seen a copper nickel coin that has a totally dark surface like black and grey what could cause it , is it corrosion , patina or error?
JimmyD
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Canada
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 Posted 09/09/2021  09:46 am  Show Profile   Bookmark this reply Add JimmyD to your friends list Get a Link to this Reply
Definitely not an error. It didn't look like that when it was struck.
It could be several things, toning, environmental damage, been in a fire.
All of what would be considered damage.
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Coinfrog
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 Posted 09/09/2021  10:39 am  Show Profile   Bookmark this reply Add Coinfrog to your friends list Get a Link to this Reply
Can you show us a pic?
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Ty2020b
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 Posted 09/09/2021  10:46 am  Show Profile   Bookmark this reply Add Ty2020b to your friends list Get a Link to this Reply
Any number of things. Likely environmental damage or post mint damage of some kind, but could also be an improperly annealed planchet. Pics will tell.
Edited by Ty2020b
09/09/2021 10:47 am
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All Forums Category: General Numismatic Forums Forum: Main Coin Forum



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