National League ball -- A. Bartlett Giamatti, commissioner -- signed on sweet spot by Mickey Mantle sometime in late 1989 to the early 1990s. (Giamatti died in 1989, after serving only five months as MLB commissioner, and Mantle died in 1995.) Willie Mays signed on side panel. (Both signatures guaranteed to be authentic -- if PSA/DNA or JSA do not pass the signatures, the ball can be returned for a full refund of the purchase price.) Some spotty toning. Strong signatures.