Though his spectacular career was winding down, Tom Seaver still posted a 16-11 record in 1985 with the Chicago White Sox. Included in that tally was his 300th career victory, and this Official American League (Brown) ball shows great use from that game, on August 4. This gem comes from the former Ohio Baseball Hall of Fame and was obtained directly from Tom Terrific, is signed in gorgeous 10/10 black ink, "Tom Seaver #300, 8-4-85" all in his hand; also written below is "White Sox-4, Yankees-1." The following season would be the last for the three-time Cy Young Award winner, who started as Rookie of the Year in 1967 with the New York Mets before earning 311 career triumphs on his way to the halls of Cooperstown. Comes certified by PSA.