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I notice Doubling on Bowtie, ear and left shoulder lapel. The coin appears to have a pivot rotation with die clash. Doubling on Letetrs and date. The reverse also has doubling and die clash.What causes the slag on coin Thanx
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This looks like a zinc cent that was struck too hard and it broke through the copper layer. That blue looking stain is from the zinc core. It's a form of damage. In my opinion, it does not hold any collectable value.
The green stuff may be verdigris. It happens a lot to copper coins, especially in high humidity areas and if some one is located near the ocean.
Three helpful posts:
How to take better photos with a Cellphone:
https://board.conecaonline.org/forum...th-a-cellphone
RPM or DDO question? Help us help YOU:
https://board.conecaonline.org/forum...lp-us-help-you
What Forum to post your coin questions:
https://board.conecaonline.org/forum...t-forum-to-use
Gary Kozera
Website: https://MintErrors.org
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