MLB Triple Crown Winners Signed Autographed Baseball Manlte Yastrzemski + JSAOfficial Bobby Brown baseball signed by four players to have hit for the triple crown in a Major League season, with letter of authentication from James Spence Authentication JSA certification number: BB21901 Signed by Mickey Mantle of the New York Yankees (1956 triple crown winner), Ted Williams (1942 1947) and Carl Yastrzemski (1967) of the Boston Red Sox, and Frank Robinson of the Baltimore Orioles (1966) Hitting the triple crown involves leading