This is a Team Sheet that has been hand signed by 10 Hall of famers. Signatures include Hank Greenberg, Sandy Koufax, Stanley Coveleski, Chas. Gehringer, Freddie Lindstrom, Waite Hoyt, George Kelly, Jocko Conlan, Burleigh Grimes & Robin Roberts. The photo has been certified authentic by PSA/DNA and comes with their sticker and matching full page certificate.