Shawn Kemp Signed Seattle Super Sonice 16x20 Photo Beckett 42827 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 16x20 Photo that was personally autographed by Shawn Kemp. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.