Scale: 1:9.6. A picture model of the triple expansion engines, used in the battleship HMS Sans Pareil (1887) made entirely in paper and card with wooden and metal fittings and hand coloured. The model depicts a longitudinal and two cross sections of a triple expansion engine and is contained in a glazed square profile dark wood frame with a gold slip. The model is made using a number of cut-out card, or wood shapes onto which is applied hand-rendered depictions of various working and moving parts of the engine. By turning a crank-handle that can be inserted into and aperture on the bottom right-hand side of the frame, and turning it, the various parts of the model move according to their function. The whole is mounted onto an unpainted paper surface, now discoloured and torn in places. Hand-rendered on model ‘Triple expansion engines "H.M.S. Sans Pareil" Twin screw 12000 I.H.P. By Humphrys Tennant & Co’, ‘Scale 1 1/4 inch - 1 foot’, ‘Low pressure engine looking forward’, ‘H & T C Batchelor Constructors of Motion Drawings West Kensington London S.W.’ and ‘Intermediate engine looking forward’.