Description:Bill Russell autographed and statistically inscribed basketball. Official Spalding NBA basketball signed by Russell in silver adding uniform #15 from his University of San Francisco tenure. Russell has added additional desirable inscriptions, "2XNCAA, 2X All American, 55 Straight, and USF". Uncommonly seen Bill Russell statistically inscribed ball with direct Russell Collection provenance. Includes auction LOA from JSA with Legends Unite hologram affixed and certificate of provenance from Bill Russell: NM-MT