Description:Lefty Grove single signed baseball c.1960s. J.DeBeer and Son "Semi-Pro League" baseball has been signed "Lefty Grove" across the sweetspot in ink rating 8 out of 10. Ball displays moderate toning/discoloration and a clear coat was applied years ago to aid in preservation. Includes letter of provenance from the Kennedy Family and auction LOA from JSA: Sig. NM, Ball VG