Mark McGwire 1999 Home Run Game Used Signed Baseball Provenance JSA off Maddux! McGwire hit a grand slam off Greg Maddux on May 4, 1999 that landed in the Braves bullpen. This is the ball that hit the back of the bullpen wall leaving the major scuff as seen on the photos.The ball was retrieved by a member of the Braves ground crew who collected it and noted the ball with two separate markings of "1". He also noted other balls during that season of significance. The ball comes with the signed official letter of. Very rare to get a home run baseball but what makes this ball even more special is that it was hit off HOF'er Greg Maddux and for a Grand Slam! This item is in the category "Sports Mem, Cards & Fan Shop\Game Used Memorabilia\Baseball-MLB\Baseballs".
The seller is "billyscards" and is located in this country: US. This item can be shipped to United States, Canada.