Update:MLB recognized Jerry Dior as the MLB logo's original designer, said Commissioner Bud Selig in a release. With the recognition comes the answer to ? that has puzzled: which player is the silhouette based? "People said my design was based on Harmon Killibrew, but it wasn't," said Dior. "Mine wasn't based on anyone--just nondescript figure with a bat." "I didn't model it after any one player," Dior said. "It was intentionally ambiguous in every way, including righty vs. lefty." Original:1969The silhouetted batter MLB logo was first used in 1969, but was more established in 1970. From 1970 on, all officially licensed Major League Baseball items have the MLB logo.The silhouetted batter on the MLB logo is Harmon Killebrew.