1993 Promotional Upper Deck KEN GRIFFEY JR No 24 SEATTLE MARINERS Future Heroes Poster measuring (Approx. 22 in. by 33.5 in.) in Excellent Condition (Came folded in Boxes in Cases). SEE More SEATTLE MARINERS - BASEBALL and Other SPORTS Memorabilia in My EBAY STORE. Click on EBAY STORES Logo after my USER ID GGSTADIUM to see my OTHER SPORTS MEMORABILIA AUCTIONS Specializing in BOSTON SPORTS sorted by Sport Categories!