This is a Basketball that has been hand signed by 16 members of the 1981-82 Seattle Super Sonics. Signatures include Lenny Wilkens, Jack Sikma, Gus Williams, Greg Kelser, Danny Vranes, Mark Radford, Wally Walker, Dave Harshman, Fred Brown, James Donaldson, John Johnson, Phil Smith, Bill Hanzlik, Ray Tolbert and Lonnie Shelton. This item has been certified authentic by Beckett Authentication (BAS) and comes with their tamper-proof sticker and matching full-page certificate of authenticity.