Pair of baseballs signed, respectively, on the sweet spot by Gerald Ford, 38th President of the United States, and Jimmy Carter, 39th President of the United States. Each signature has been authenticated by PSA and is accompanied by an individual COA and corresponding hologram label (affixed to the ball). 1) Gerald Ford. Blue ink signature (grading 9/10) on an Official National League (Coleman) ball. EX. 2) Jimmy Carter. Blue ink (grading 8/10) on an Official Major League (Selig) ball. NM.