Description:1926 George L. Kelly endorsement letter to Louisville Slugger (Ex-Hillerich & Bradsby Co. Archives). Typed letter on "New York Base Ball Club" stationary is dated June 12, 1926. Content relates to his recommendation of Louisville Slugger bats and it has been signed "George L. Kelly." Fountain pen signature rates 8 out of 10. Light handling wear. Includes auction LOA from JSA: EX/MT