The Bristol-based Douglas Foundry took up motorcycle production in 1907 with a machine powered by a horizontally-opposed twin, and the company would keep faith with this engine layout until it ceased motorcycle production in 1957. Fore-and-aft installation made for a slim machine with a low centre of gravity, and the design's virtues were soon demonstrated in competition, Douglas machines taking first, second and fourth places in the 1912 Junior TT in the Isle of Man. Douglas were quick to realise the advantages of the countershaft gearbox, its three-speed entries gaining the Team Prize in the 1914 Six Days Trial, a conspicuous success which resulted in the firm obtaining a wartime contract for the supply of military machines. Previously the property of the Murray Motorcycle Museum in the Isle of Man, this 350cc Douglas has the side-valve engine of fixed-head type with outside flywheel and EIC magneto ignition. The transmission comprises chain primary drive to a two-speed hand-change gearbox, and belt final drive. Incomplete and offered for restoration, the machine is sold strictly as viewed.