Some exceptional Proof Indian Head 5-cent pieces are set to impress at Heritage’s Nov. 21 to 24 auctions. The series started with two distinct types in 1913. In the first design, the Bison on Mound, the bison appeared posed on a slight elevation. In the second design, defining the recessed area for the date removed the perception of a mound, and the Bison on Plain designation, or Type Two, was born.