Nice coin. A bit above average is detail, although evident weakness at bust, hair, rays, etc. Grade's about right.
This die pair must have been among the best, toughest, they made for the first day's production. It lasted through several medal press impressions, plus a bunch of circulation strikes in a toggle press. (PS: "Satin" in the term for a medal press struck coin from new dies; no luster, satin-like surface. "Sandblast" refers to literally sandblasting a satin proof to give it a duller, more medallic appearance. Sandblasting also suppresses detail, so they will not appear as sharp as a satin proof.)