I think this is probably a F15. However, if it was sent to a grading service, I would expect it to come back as Damaged or Cleaned. The reverse sort of gives it away because of all those long scratches across the surface. I think, at least the reverse, was harshly cleaned/scrubbed at one point. The scratch that goes right through the "E" in "STATES" is one example of what makes me think this coin was harshly scrubbed.