The effect along the top edge of the reverse (a little less so on the obverse) is one that I'm curious about. You see it in a lot of coins, including many that are quite high grade. I assume it's something that happens during the actual strike in which case it would *not* be a details indication.
It's a little hard to tell how much mint lustre there is there but I think there is definitely some so I would put that in the AU range. Hard to tell what the Sheldon score is. Likely higher than 50.