MS-64, I think the face and that hit in the field would hold it back from anything higher but gold is tougher to grade.
That reverse. I can't get anywhere grading gold. I see the marks on the face and the hit in the field, but I'm also looking at a, what, 4X blow-up from the coin's actual size? Bigger still by the time I'm done zooming in. I'm also pretty sure the light is positioned to maximize the contrast from that hit.