2-1/16x4-7/8". The 1955 Topps Baseball Doubleheaders set consists of 66 cards, each patterned after the 1911 T201 Mecca Double Folders. The cards are perforated through the middle, allowing them to be folded. When opened, there is a colorful painting of a player set against a stadium background, and when folded display an alternative player and ballpark setting. Placed side by side in reverse numerical order, the backgrounds form a continuous stadium scene. Each unnumbered card is designed so that each athlete shares the same lower legs and feet, and each reverse carries a brief career history and statistical data of the respective athlete. The 66 cards in the set represented 132 total players, all of whom also appeared in the lower numbers of the regular 1955 Topps set.

Russell Paul Kemmerer (1930 -  2014) was an American professional baseball player. Monford Merrill "Monte" Irvin was an American left fielder and right fielder in the Negro leagues and Major League Baseball (MLB) who played with the Newark Eagles (1938-1942, 1946-1948), New York Giants (1949-1955) and Chicago Cubs (1956). Irvin was a World Series Champion in 1954. He was inducted into the National Baseball Hall Of Fame in 1973. The autograph on the card is distinct and well placed. This signed copy is one of only three examples ever graded by PSA with only one other graded higher.