Collection of four World Championship team-signed balls spanning the years 1991 to 1997. 1) 1991 Minnesota Twins. Eighteen blue or black-ink signatures on an Official 1991 World Series ball, including Puckett, Kelly (Mgr. sweet spot), and Davis. Eight of the eighteen signatures are badly faded and are barely legible; the remaining ten signatures average 8/10. EX-MT. 2) 1992 Toronto Blue Jays. Twenty-seven black-ink signatures (averaging 3/10) on an OML (Selig) ball, including Carter, Alomar, Gaston (Mgr., sweet spot), Olerud, and Morris. 3) 1993 Toronto Blue Jays. Twenty-four blue-ink signatures (averaging 7/10) on an OML (Selig) ball, including Molitor, Carter, Alomar, Olerud, Leiter, and Morris. EX-MT. 1997 Florida Marlins. Fifteen blue-ink signatures (averaging 9/10) on an Official 1997 World Series ball, including Sheffield, Alou, Hernandez (sweet spot), Leiter, and Floyd. EX.