April 1930 advertisement for Louisville Slugger, featuring Hall of Famers Al Simmons, Jimmy Foxx and Mel Ott.
“Here are new reasons for using Louisville Slugger Bats–three new Autograph Models and a new finish that increases the Wallop in every hit. The bats used by Foxx and Simmons, noted sluggers of the World Champion Athletics, and Ott, third on the National League sluggers list, have been added to the Louisville Slugger Autograph Line. These players have used Louisville Sluggers in piling up their great records and now we make available to all ballplayers their own particular bat models, with their signatures, and our BONE-RUBBED trademark burned into the barrels”