Is this carbon spotting?

DarkRedSky

I've seen people discuss carbon spots often with Lincoln's and was wondering if this was an example.

This is a 1995 DDO MS68RD with three nasty spots. Does this spotting not factor into PCGS grading or could it have developed after it was slabbed? Hard to think a coin could get a 68 with these blemishes.

copperfan

Looks like it to me. Also, it would have NEVER slabbed as a MS68 like this. Maybe with a self slabber, but not PCGS. Most likely it developed these spots after going into the lab.

WoodenJefferson

I'm by no means a copper expert but from what I know, so-called “carbon spots” on copper look like little flicks of "India Ink" (black liquid ink) on the surface of the copper.

They can appear at any time and at any moment and is a chemical reaction to some sort of sulfide and yes, they can appear after holdering.

Edit to add: Do a Forum Search, this had been discussed before.

BECOKA

My bet is they formed after slabbing. This is a coin I would send back to PCGS under the grade guarantee. I've had to use it a couple of times. On the submission form just put other and add in spot review. Should not cost anything other than shipping to and from.