Sammy Sosa Autographed 1990 Upper Deck Rookie Card #17 Chicago White Sox Auto Grade Gem Mint 10 "Slammin Sammy" Beckett BAS Stock #192905 rsa-check This is a 3x5 Index

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Sammy Sosa Autographed 1990 Upper Deck Rookie Card #17 Chicago White Sox Auto Grade Gem Mint 10 "Slammin Sammy" Beckett BAS Stock #192905 rsa-check This is a 3x5 IndexThis is a 1990 Upper Deck Rookie Card #17 that has been hand signed by Sammy Sosa. The condition of the signature was graded a Gem Mint 10 by Beckett BAS. This item was inscribed "Slammin Sammy." It has been certified authentic by Beckett Authentication Services (BAS) and comes encapsulated in their tamper proof holder.