I got a wonderful Morgan 1883P VAM 20 that graded out at AU58. These are often a mystery to me. Reviewing the ANA guild for coins and grading, I really don't see any wear spots on this coin. I thought it should be Ms. It is certainly cleaner than many MS63s so I was hoping for a grade even higher than that. But it came back an AU58. I see no wear on the wing tips of the hair highlights of the portrait, or the breast. How would you grade this coin?