"3"^^ . "The WAGR AO class was a three member class of petrol-driven railmotors or railcars operated between 1922 and 1950 by the Western Australian Government Railways (WAGR).Only one member of the class, no. 431, survived long enough to be officially classified as an AO class vehicle, in 1937."@en . . "WAGR AO class"@en . . .