| Driving Wheels | 3ft 3ins |
| Boiler Pressure | 120psi |
| Cylinders | Outside 12in x 20in |
| Valve Gear | Stephenson |
This is one of 25 locomotives built for the Queensland Railways between 1874 and 1882. Kitson & Company built 12, Avonside Engine Company (under sub contract from Fairlie) 3, Dübs and Company 6, Neilson & Company 2 and the North Ipswich Railway Workshops 2.
This locomotive was built by the Avonside Engine Company in Bristol in 1879 and entered service with the Southern & Western Railway in November 1877 as number 31 of the E class. Under the Queensland Railways the locomotives were grouped as the B12 class in 1890 but the number was unchanged. The B representing that the locomotives had three driving axles and the 12 the cylinder diameter.
In 1911 the locomotive was sold by the Queensland Government Railway to the Aramac Shire Council to operate on their Aramac Tramway in western Queensland. The Aramac Tramway was a 41mile line that linked Aramac with the Queensland Government Railway at Barcaldine. To increase the range the locomotive could travel it was paired with a larger Baldwin designed tender. On the Aramac Tramway the locomotive was renumbered as A1.
served Outside Britain – By Country
Preserved British Steam Locomotives 