Ken Griffey Jr. Autographed 1988 ProCards Rookie Vermont Mariners Card Auto Grade Gem Mint 10 Beckett BAS Stock #220294

This is a 1988 ProCards Rookie Vermont Mariners Card that has been hand signed by Ken Griffey Jr. 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.