Autographed: Yes

League: Major League (MLB)

Set: 1999 Skybox Thunder

Signed By: Ken Griffey Jr

Autograph Format: Hard Signed

Grade: 10

Player/Athlete: Ken Griffey Jr

Sport: Baseball

Autograph Authentication: Professional Sports Authenticator (PSA)

Manufacturer: SkyBox

Professional Grader: Professional Sports Authenticator (PSA)

Team: Seattle Mariners

Features: Insert

Card Number: #3

Season: 1998