The 1998 CIRCA THUNDER #100 KEN GRIFFEY JR. PSA 8 is a collectible baseball trading card featuring Ken Griffey Jr. from the Seattle Mariners. This original card is part of the 1998 Skybox Circa Thunder set and has been graded by Professional Sports Authenticator (PSA) as an 8. Made of card stock with a thickness of 20 Pt., this English-language card is a sought-after piece for baseball fans and collectors looking to add a piece of sports memorabilia to their collection.