Look in UST in trust. The mint mark, his lips, and chin in different angles, The "In". We looks thicker than usual Maybe the L in liberty off to the side but I can only see that in pictures
I cant tell if that is an RPM or not it doesn't match anything on Wexler or Variety Vista. These years of Lincoln cents have a very mushy design, You can try to match it here. http://varietyvista.com/01b LC Doubled Dies Vol 2/DDO 1963-D.htm I had no luck with the photos provided. Often during the strike the perimeter lettering looks pushed towards the rim. In my opinion the profile looks like MD.