1-75
18 A - Caterpillar Bulldozer, 1955 - 1958, 48 mm, 1:137
18 B - Caterpillar Bulldozer, 1958 - 1961, 50 mm,
1:117
18 C - Caterpillar Bulldozer, 1961 - 1964, 58 mm, 1:112
18 D - Caterpillar D8 Bulldozer, 1964 - 1969,
61 mm, 1:102
18 E - Field Car, 1969 - 1970, 69 mm, 1:64