1915-S Buffalo Nickel. MS-65 (PCGS). OGH. This warmly patinated example exhibits iridescent undertones of lilac-blue and reddish-apricot to dominant pewter gray. From a relatively small mintage of 1,505,000 pieces, the 1915-S is a conditionally challenging Buffalo nickel that is typically found in the lowest circulated grades. From the Larry H. Miller Collection. From the Larry H. Miller Collection.