outline from the Falcon Engine & Car Works (successor to Hughes's Locomotive and Tramway Engine Works), and two more from Manning Wardle & Co of Leeds in the early 1880s. A further locomotive (originally numbered 5, later 3) came from the Hunslet Engine Company of Leeds in 1885. When the new Swansea & Mumbles Railway Company took over operations in 1890 it ordered two 0-4-0 saddle tank locomotives from Black, Hawthorn & Co of Gateshead. These were delivered in 1891 and numbered 1 and 2; they worked on the line until after the First World War. Two larger 0-6-0 side tank locomotives were obtained from the Hunslet Engine Company in 1898; numbered 4 and 5, they bore the brunt of the passenger service until well into the 1920s. The nominally independent Mumbles Railway & Pier Co. ordered a 0-4-0 saddle tank from the Brush Electrical Engineering Co of Loughborough (successor to the Falcon Engine & Car Works) in 1906 and this carried plates reading "MR & P No. 3" to denote its ownership. Finally, a second-hand Avonside 0-6-0ST was obtained and named Swansea. All were tank locomotives of 0-4-0 or 0-6-0 wheel arrangement. Ownership was vested variously in the Swansea & Mumbles Railway Company or the Mumbles Railway & Pier Company (and sometimes transferred between the two for accounting purposes) and as early as the 1890s there is evidence that the railway was having to hire in locomotives to supplement its own fleet. By the 1920s, locomotives were regularly being hired from a local dealer, Charles Williams of Morriston, and frequently appear in photographs of the railway taken at that time. Centenary - royal visit The line celebrated its centenary in 1904, producing a special commemorative brochure for the occasion. Two years previously, a notable experiment had been carried out, namely the introduction of battery-powered 'accumulator' cars. These were not a success, but one of the cars was retained after the electrical equipment had been stripped out and used to convey parties of visiting dignitaries, including King Edward VII when he and his consort, Queen Alexandra, visited Swansea for the ceremonial cutting of the first sod of the King's Dock in July 1904. The car was used again for the visit of King Edward's successor, King George V, in 1920, when he officiated at the opening of the Queen's Dock. Electrification The line was electrified in 1928 at 650 V