For the notoriously mushy '20-S, well struck with a full horn, separated hip bones on the Bison's rump, and the split showing at the tip of the tail.  Original with some signs of luster.  The small areas of grey-brown color are areas where the alloy was not quite completely mixed, leaving a bit more Copper near the surface of the planchet.

PCGS 3946.45/59035978