This set of Official American League (Bobby Brown) balls represent the baseball royalty that patrolled the hallowed grounds of centerfield, Yankee Stadium from 1936 - 1968. In that glorious period of time Yankee fans watched "The Yankee Clipper" and "The Mick" combine for 897 home runs, over 3000 RBIs and an incredible 16 World Series titles. It's unlikely that any two players will exert their will and dominance over a span of three plus decades in any professional sport ever again. Mickey has signed his ball and added "HOF 74," while Joe D.'s regal signature sits on the sweet spot of slightly toned ball. A fantastic set of baseballs for any Yankees collector.