Hi, New here and was hoping to get some answers about these burn marks I am finding in rolls of uncirculated 2017 D Lincolns. Anyone know what's goin' on here? Both photos are two different examples.
Looks more like a something on the coin changing the color of the coin. If it were a missing plating issue, the color would be gray and not radiate outwards. Something on the coin that altered the plating.
I have seen these in BU rolls a lot. I think it is just a bad copper plating issue. Maybe something gets on the zinc blank that prevents the copper from adhering to it. John1
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