The area where the DDR supposed to be has dirt or silt blocking the exact spot. I have no choice , so I am dipping the coin in acetone. If I post as is you would just see a pile up of some foreign material in the spot. So after soaking, I would post the area.
I thought it was referring to the rim disturbance. I saw the one on the wing, but it didn't occur to me they were referring to that. I thought the attention was miss directed to the edge area. Sorry. But still a spender. The die chip is not a premium item. (Oh, just figured out, the mentioning on cuds on coins, made me think that the rim was the issue.)