I have looked through about 40 of these anniversary set bullion eagles that I have on hand and I found 8 of them like this. I noticed too that there is a pronounced dent in the sun ray opposite the "L" in liberty on these coins as well. I hope this develops into something. I have been one of those people that wanted the tail dimple to be a good marker for these coins in general, but that has not received wide acceptance yet. Lets find a marker for these coins from the anniversary set to allow the low mintage of 100,000 mean something for this coin!