League: Minor League Baseball (MiLB)

Autographed: Yes

Signed By: Ken Griffey Jr.

Autograph Format: Hard Signed

Player/Athlete: Ken Griffey Jr

Sport: Baseball

Type: Sports Trading Card

Autograph Authentication: Professional Sports Authenticator (PSA)

Manufacturer: Team Issue

Team: Seattle Mariners

Features: Rookie

Card Number: 15

Season: 1988