| Weight | 53t |
| Driving Wheels | 4ft 7ins |
| Boiler Pressure | 150psi |
| Cylinders | Outside – 15½in x 22in |
| Tractive Effort | 11,532lbf |
This is one of eight locomotives built by Beyer Peacock at Gorton in Manchester for the Tasmanian Government Railways. The first six were supplied in 1892 and the last two in 1902.
In 1908 this locomotive was one of two rebuilt by the Tasmanian Government Railways in their Launceston Workshops with Belpaire boilers and enlarged fireboxes. Five more were converted between 1927 and 1932 and the last in 1946.
All eight locomotives were withdrawn from service in the early 1950s with the introduction of diesel-electric locomotives. They were then stored at Turners Marsh until seven were scrapped in 1956 leaving A4 which was the Royal train engine having hauled four such trains between 1901 and 1935.
In 1960 A4 was placed on a plinth in Launceston City Park.
In August 1990 the locomotive was acquired by the Don River Railway and initially placed on static display on one of the roads by the turntable at Don until the late 1990s.
The locomotive was then moved into the workshops and dismantled for restoration to commence. The plan was to fit the locomotive with a spare a class locomotive boiler which was of a later construction than that on A4 and had only been used for a very low mileage.
The restoration work is still continuing in the workshops at the Don River Railway.
Preserved British Steam Locomotives 