USPS First Day of Issue Ceremony Program for the dedication of Scott #4080-4083 39c Baseball Sluggers commemorative stamps, Block of 4 Different, July 15, 2006. Bronx, New York.  Ceremony held at Yankee Stadium. day cover.  Players featured are Mickey Mantle - New York Yankees, Roy Campanella - Brooklyn Dodgers, Hank Greenberg - Detroit Tigers, and Mel Ott - New York Giants. Program measures 9" x 6".