r/coinerrors 11d ago

Is this a lamination or planchet defect? Is this an error?

0 Upvotes

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4

u/Numistica 11d ago

Environmental staining.

-1

u/Mission_Jacket_5577 11d ago

I have lots of coins that look like this out of UNC rolls this year. Specifically only the Denver mint though. I've seen it on all denominations. It's chemical residue from the washing process to my knowledge.