Locomotive number 20 was delivered to the SDJR straight from the manufacturer, Bagnall, in 1928. When it entered the LMS pool of Jintys it would be renumbered 7151. Shortly after this, during a renumbering scheme it would be renumbered again to 7311. The locomotive would enter War Department service before being returned to its standard service, although now with BR as 47311. The locomotive would spend much of its BR life stationed in London before being withdrawn from the Stratford shed in 1960, being scrapped shortly after.
The Hornby Jinty is fitted with a 3 pole motor and simple gearing, proving to be a reliable runner on any layout. The 6 pin DCC socket allows the model to be used on a digital layout if required and its railroad specification make it ideal as a starter model.