Filter by Era Era 4 - dieselisation 2nd gen. 15 * GM 121s from 1960, 38 * 141s from 1962 & 12 * 181s from 1966:1964-1975 1964-1975 Era 5 - dieselisation 3rd gen. 18 * GM 071 class:1976-1991 1976-1991 Era 6 - dieselisation 4th gen - GM201 class:1992-present day 1992-2010 show all
