This Autographed Wilson Basketball has been Personally Signed by Jim Valvano, Lorenzo Charles, Terry Gannon, Spud Webb, Russell Pierre, Cozell McQueen, Bennie Bolton, George McClain, Harold Thompson, Alvin Battle, Rodney Butts, Mike Warren, Walt Densmore & Tommy DiNardo. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.