Pandalzi, There seem to be some very very light scratches in that area. Almost more of a reflective absence of toning in hand. It is kind of odd that they are in a protected area and not on other parts of the coin. Interesting in any case.
I can say that there has been no attempt to clean this coin. This coin has sat in a paper 2x2 envelope since my grandfather got it in Washington D.C. on February 10, 1937. Just for fun, I posted a picture of the envelope that was the coins home until recently. Now it is in a 2x2 acetate flip.
