The 1998 Skybox E-X Ken Griffey Jr. Essential Credentials Now ... Credentials Now will be his most expensive card sold. Heritage's estimated value of the card is $200,000+. The auction ends ...

Though Ken Griffey Jr.’s 1989 Upper Deck rookie card is by far his most famous card — and among the most iconic in history — it isn’t his most valuable card. That distinction currently ...

MLB legend Ken Griffey Jr.'s second career took another step in the right direction, as he is an official photographer at The Master.

There are thousands of Upper Deck (UD) Ken Griffey Jr. cards and tens of thousands of Griffey cards from different releases ...