Haromon Killebrew (1936). American Baseball Legend. Signed Official American League basball. This ball is signed by Harmon Killebrew 573 HR's .Harmon Killebrew is a baseball legend and one of the few players to hit more than 500 Home Runs in their career.Killebrew is eight on the list of all time home run hitters.The signature would rate a 9 and the same for the condition of the ball.

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