Drawing of Three Cylinder Express Engine for the York, Newcastle and Berwick Railway No 737

Parts of the engine shown by drawing 103 appear to have been used in the construction of this engine, signed E Snowball. A description is given by D K Clark in "Railway Machinery" 1855, p 24. Description from A Century of Locomotive Building by Robert Stephenson & Co 1823-1923, J G H Warren, p 402. Drawing reference - 112.