Shawn Kemp Autographed/Signed Seattle Super Sonics Basketball BAS 42562 The number in the listing title is just an inventory sku for our records and is not the authentication number. The item pictured is a stock photo unless otherwise noted. This is a Seattle Super Sonics Basketball that was personally autographed by Shawn Kemp . Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.