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1994 Upper Deck #GM1 Ken Griffey Jr./Mickey Mantle PSA Authentic Signed Card Collection (3) on Goldin Auctions
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2001 Upper Deck Game Jersey Baseball Card Set - VCP Price Guide
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What might have been: Hall of Famers Mickey Mantle and Ken Griffey Jr.
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Auction Details Backes Auctioneers
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Ken Griffey Jr Checklist - Supercollector Catalog
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Lot Detail - Mickey Mantle & Ken Griffey Jr. Dual-Signed 1994 Upper Deck (Graded PSA/DNA 10)
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Beckett Baseball May 2021
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How Upper Deck did the '70s
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2001 Upper Deck Baseball Card Set - VCP Price Guide
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Upper Deck Ken Griffey Jr Baseball Sports Autographed Trading Cards for sale