Carl Mays and Babe Ruth signed &lt;a href=&quot;https://collection.baseballhall.org/PASTIME/carl-mays-and-babe-ruth-autographed-ball-1920-august-23-5&quot;&gt; this ball&lt;/a&gt; from Mays&#039; complete game on Aug. 23, 1920. It was just one start after Mays hit Ray Chapman in the skull with a pitch, resulting in Chapman’s death. (Milo Stewart Jr./National Baseball Hall of Fame and Museum)