Working drawing of Thompson's engine, said to show the "Belted Will" as built, or rebuilt, for James Thompson of Kirkhouse, Carlisle, 1839. The engine is generally of the Killingworth type; the boiler is fitted with a smokebox and is presumably multitubular. Carmichael's Gab Valve gear is fitted. Description from A Century of Locomotive Building by Robert Stephenson & Co 1823-1923, J G H Warren, p 35. Drawing reference - 124.