His baseball cards, especially his rookie cards, have been invaluable and highly sought after by collectors since the late 1980s. Here’s a list of Ken Griffey Jr.’s most valuable cards.

and bought his baseball cards. Ken Griffey Jr. and the Enduring Sports Cards of the 80s and 90s Griffey's 1989 Upper Deck Star Rookie card is the most iconic of the past 35 years. He has seven ...

This card will set you back $250,000. This is just the tip of the iceberg for Griffey cards. He has plenty more highly valuable ones ... covering Major League Baseball at Sportskeeda and a former ...

Aug 6, 2016; Seattle, WA, USA; Seattle Mariners former player Ken Griffey Jr ... cards of all-time. Why not combine the undisputed King of the Hobby, Mickey Mantle, with the most popular baseball ...

Ken Griffey Jr. 1989 Upper ... rare and more valuable, fetching about $4,000 in the same condition.) It’s shocking to me that this is the most graded vintage basketball card, an honor I would ...

Let's say you did some baseball card collecting during ... along with a second-year card of Ken Griffey Jr., but the most sought-after card in the set without question is the Frank Thomas rookie ...

Ohtani ranks No. 2 only behind Hall of Famer Ken Griffey Jr. for the most baseball cards graded by industry leader PSA (Professional Sports Authenticator) and led all players with the most cards ...

With one more mighty swing of his bat, Ken Griffey Jr. will have 600 lifetime home runs. Only five players in the history of baseball ... card companies, or are we just stupid?" Rovell asks. The ...

151; -- When Ken Griffey Jr. is inducted this summer into the Baseball Hall of Fame ... The 1989 Upper Deck No. 1 card is the second-most graded card ever by collectible certification industry ...