2-5/8x3.75".  The 1952 Topps Baseball set consists of  407 cards and was issued in six distinct "Series" groups. Variations, errors and oddities in 1952 Topps include each card in Series 1 (#s 1-80) being found in Black Back and Red Back configurations. 1952 Topps Baseball Card Set is the most popular sports card set ever produced and surpassed all earlier sets in size, quality and quantity. Lawrence Eugene Doby was an American professional baseball player in the Negro Leagues and Major League Baseball (MLB) who was the second black player to break baseball's color barrier and the first black player in the American League. Some career highlights include being a seven time All-Star, a two time AL Home Run leader in 1952 and 1954 as well as a World Series Champion in 1948. Larry Doby was inducted into the National Baseball Hall Of Fame in 1998.