Description:Gabby Hartnett single signed baseball. Reach J.Cronin Official American League baseball has been signed across side panel and sweetspot, "Leo Gabby Hartnett." Vintage ink signature rates 6/7 to 7 out of 10. Ball displays light scattered discoloration and retains bold League stampings. Includes auction LOA from JSA and letter of provenance from the family of 1940s-1950s era player Earl Rapp from whose estate it originates: EX-EX/MT