JACK CUST Signed Baseball Leonard S. Coleman, Jr. Rawlings Official National League Baseball John Joseph "Jack" Cust III (born January 7, 1979) is an American former professional baseball designated hitter and outfielder. He played in Major League Baseball (MLB) for the Arizona Diamondbacks, Colorado Rockies, Baltimore Orioles, San Diego Padres, Oakland Athletics, and Seattle Mariners. In 1997, Cust, out of high school, was the first round draft pick (30th overall) of the Arizona Diamondbacks, and had a .447 on-base percentage in 35 games in the Rookie League. Cust was a Pioneer League All-Star in 1998, where he led the league in walks (86), on-base percentage (.530), and runs scored (75). In 1999, he led the California League in homers (32), on-base percentage (.450), and slugging percentage (.651), and was Baseball America's 1st team Minor League All-Star DH, California League All-Star, and the Arizona Diamondbacks Minor League Player of the Year. In 2000, he had a .440 on-base percentage at El Paso in the Texas League while leading the league in walks (117) and strikeouts (150). The baseball is complete and in FINE condition with some yellowing of the ball with age. I personally had the baseball signed with a ballpoint pen in 2000 by Jack Cust when he played for the El Paso Diablos who were the AA Texas League affiliate of the Arizona Diamondbacks.