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Ken Griffey Jr. Autographed Topps Project 2020 Jacob Rochester Card #66 Seattle Mariners "10x GG" #1/1 PSA/DNA #52451066 Vertical Layout This is a Blue JerseyThis is a Topps Project 2020 Jacob Rochester Card #66 that has been hand signed by Ken Griffey Jr. This is a limited edition item that has been hand numbered #1 1. This item was inscribed "10x GG." This card was signed in Black. It has been certified authentic by PSA DNA and comes encapsulated in their tamper proof holder.