Description:500 Home Run Club autographed baseball. Giamatti NL ball signed by (11) members of the 500 HR club to include Williams, Mantle, Banks, Aaron, Mays, Robinson, McCovey, Jackson, Mathews, Schmidt, and Killebrew. Ball itself has some age toning to a few spots with signatures ranging from 8 to 10 out of 10. Includes LOA from JSA and COA from Green Diamond Sports: Ball: EX, Signatures: NM