This 1990 Donruss Ken Griffey Jr Diamond Kings card is a rare gem for any collector. With a rookie year of 1989, this card features a unique error on the back, making it a one-of-a-kind addition to your collection. The card is in great condition and has been well-preserved since its manufacture in 1990. This sports trading card is an excellent choice for fans of the Seattle Mariners and Major League Baseball. The card features the legendary Ken Griffey Jr and has been authenticated by Donruss, ensuring its authenticity. Don't miss your chance to own this rare error card from a historic season.