@OgNasty - The pattern was there when I purchased form @Coblee a year+ ago. He already had them slabbed and I bought as you see it. I've never handled or re-slabbed/etc. The pattern does not appear to have changed at all during the time I've had it. Question for you- Does yours have the error holo + the 2 factor like this one does? Haven't seen that very often, and your pictures didn't show the back side.
Ahh, I must have bought mine before he had them slabbed. I'm guessing either coblee handled them with his bare hands at some point or the grading company did. Would be cool if coblee could shed light on that mystery as if this happened during grading it would certainly effect user opinions on graded coins. Mine is in a regular airtite capsule. It has the 2 factor like yours but I'm not sure about an error holo. What is the error on this hologram?
I've never handled the coins. They stayed in the capsule. Since the capsule is not 100% airtight, some oxidation might occur and react with the alloy in the gold. That's what you are seeing. This happened before the grading.