1991-92 Portland Trail Blazers Team Signed Game Used Basketball. Signed by nineteen, including Clyde Drexler, Terry Porter, Walter Davis, Danny Ainge, Buck Williams, Jerome Kersey, Cliff Robinson, Kevin Duckworth, Danny Young, Wayne Cooper, Ennis Whatley, Alaa Abdelnaby, and Lamont Strothers. Also signed by Gary Payton and Nate McMillan of the Supersonics, Steve Johnson of the Warriors, and three others. The autographs are signed in bold black sharpie on an official Spalding NBA (David Stern) game used ball that dates from a Portland-Seattle matchup. The ball contains referee marks, This Portland squad made it all the way to the NBA Finals where they squared off against Michael Jordan and the Bulls. Full letter COA from JSA and Heritage.