June 3, 1954: Bat 089, bottom of the 7th, 3-2 count. Check swing. No (ump calls strike). Batter out.
July 19, 1955: Bat 089, top of the 4th, 2-2 count. Check swing. Yes (ump calls ball). Walk. Later scored. serial checker bat
But here is where the story turns strange. June 3, 1954: Bat 089, bottom of the 7th, 3-2 count
But Leo didn’t stop there. He created the Ledger , a leather-bound book that cross-referenced each serial number with the player, the date of issue, the wood type, and—most obsessively—a running tally of hits, strikeouts, and check swings . 1954: Bat 089