The Electric Railway Museum was located in Warwickshire, south-east of Coventry, near the village of Baginton. The heritage railway centre was immediately adjacent to Coventry Airport and so it was also known as "The Airfield Line". The site was managed by the Electric Railway Museum Limited, and was home to a sizeable collection of preserved electric multiple units (EMUs), which was the most diverse and historically significant collection of EMUs in the UK, containing unique items that are the last survivors of once typical and numerous classes. In addition, there were small industrial electric locomotives, two small industrial diesel locomotives, and one small industrial petrol locomotive, along with some other railway vehicles, which are owned by third parties. The land was leased from Coventry City Council, though it is located just outside the city boundary and is in the county of Warwickshire.

Ruston & Hornsby was an industrial equipment manufacturer in Lincoln, England founded in 1918. The company is best known as a manufacturer of narrow and standard gauge diesel locomotives and also of steam shovels. Other products included cars, steam locomotives and a range of internal combustion engines, and later gas turbines. It is now a subsidiary of Siemens.