Use tissue paper or something to diffuse the light on the coin should help with the glare. Also need a bit better focus. Try a tripod if using a camera or a couple of books or can to hold the phone. Use the timer so you don't touch the camera/ phone when the shutter snaps should help on the focus issue.
Oh man, you gave the grade already! anyway my guess since I am usually off was 64 and as usual I am wrong Lol Lol
I'm gonna say MS64. I think it probably is higher than that but that is what your photos make it look like.