Michael Strahan Signed 1993 Skybox #398 Trading Card Beckett 38970 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 slabbed 1993 Skybox #398 Trading Card that was personally autographed by Michael Strahan. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.