In 1864, the Avonside Engine Company, Bristol built four locomotives for the Queensland Railway. After being built they were dismantled and reassembled at North Ipswich Railway Workshops. Originally classified the A class, per Queensland Railway's classification system they were designated the A10 Avonside class in 1890, A representing they had two driving axles, and 10 the cylinder diameter in inches.[1]
One, 3 Lady Bowen, operated the first Queensland Railways service in 1865 between Grandchester and Ipswich. Initially operating on the Southern & Western Railway out of Ipswich, one was transferred to the Central Railway out of Rockhampton in 1867 and the other three to Maryborough in 1879.[1]