Sammy Sosa Autographed 1990 Upper Deck Rookie Card #17 Chicago White Sox Auto Grade Gem Mint 10 "609 HR" Beckett BAS Stock #192906

This 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 "609 HR." It has been certified authentic by Beckett Authentication Services (BAS) and comes encapsulated in their tamper-proof holder.