This Autographed Spalding Indoor/Outdoor Basketball has been Personally Signed by Moses Malone, Orlando Woolridge, Warren Kidd, Jeff Hornacek, Dana Barros, Clarence Weatherspoon, Sean Green, Shawn Bradley, Jeff Hornacek and two others of the Philadelphia 76ers. 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.