Sorry for the delay in responding, I just saw this now.
Why ? Because the TPGs changed their grading standards. PCGS even publicly admitted it.
To answer your basic question no I do not think that is a carbon spot. Unfortunately a whole lot of people are in the habit of calling any dark...
Personally I think the coin is XF45. But I'm pretty strict with grading, a TPG might agree or say AU50. As for value I'd guess it should be...
I don't think that's PVC residue Searcher, I do believe that is light verdigris you see on the high points. Look closer at the tip of the tail...
I've been reading his articles all along and wanted to wait until he got to this point - close to the end - before posting it. That way folks...
Separate names with a comma.
