Baseball's first 70-home run man - Mark McGwire - made history on September 27, 1998, when he blasted his 69th and 70th homers of the season against the Montreal Expos in St. Louis. This baseball, which was used in that game, was given to Dave Parker by McGwire after the final out and it comes with an LOA from Parker. The ball is signed on the sweet spot in 7/10 ink by McGwire, who also inscribed: "Parkway, Single Season Record 70 HR's, 9/27/98." The official National League (Coleman) baseball shows light use.