It's an UNC, but a weak one. It's definitely a weak strike, especially for a Philadelphia coin. On the obverse, stars 3, 11, and 12 lack detail. There is weakness in the ribbon, ribbon knot, and heir over the forehead. The lack of luster looks more like toning than wear. On the reverse, the eagle's crown, inner feathers, and tail feathers show significant strike weakness.
My main concern is the eagle's left talon (our visual right). To me, the lack of detail there appears to be a soft strike. Ditto for the weakness on the NE part of the shield. I could, however, see a grader pausing on those areas.
The surfaces, however, look toned, but original. I don't see too many contact marks.
IMHO, if this were a full strike, it could go MS 64. The strike weakness, however, would knock it at least a half point, and likely a full point. I'm tentatively at MS 63 on this one.
I don't like the weak strike, though. I don't think it would bring full price with that strike.