1970s Hall of Fame induction signed baseball. All 22 signatures were signed in person at an early to mid 1970s Hall of Fame induction ceremony. Ball appears to have no labeling but is in EX-MT condition. Signatures average 8/10, every signer is a Hall of Fame inductee and all but one (Koufax) are deceased. Signatures include Medwick, Giles, Koufax, Marquard, Coveleski, Haines, Combs, Rice, Frisch, L. Waner, Musial, Stengel, Cronin and more. PSA LOA.