Ken Griffey Jr. Autographed 1988 San Bernardino Spirit California Cal League Rookie Card #34 Seattle Mariners BGS 9 Auto Grade Gem Mint 10 Beckett BAS #14727316
This is a 1988 San Bernardino Spirit California Cal League Rookie Card #34 that has been hand signed by Ken Griffey Jr. The condition of this card was graded a Mint 9 by BGS. The condition of the signature was graded a Gem Mint 10 by Beckett BAS. It has been certified authentic by Beckett Authentication Services (BAS) and comes encapsulated in their tamper-proof holder.