Larry Brown Signed 1991 Pro Set Platinum #286 Rookie Card SB MVP BAS Slab 42909 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 trading card that was personally autographed by Larry Brown. This has been professionally slabbed by Beckett Authentication Services (BAS) and includes a certificate of authenticity from Denver Autographs.