VII serie 1/21 (25-4-1954 - 12-9-1954)1/4 5/8 9/12 13/16 17/20 21VIII serie 1/21 (19-9-1954 - 6-2-1955)1/4 5/8 9/12 13/16 17/20 21IX serie 1/21 (13-2-1955 - 3-7-1955)1/4 5/8 9/12 13/16 17/20 21