Double-expansion marine steam engine no. 659 made by Messrs. Elliot and Garwood Ltd. Double-expansion marine steam engine no. 659
Original Boulton and Watt model of a large marine side lever engine, Brown's patent no. 9441 of 1842 Original Boulton and Watt model of a large marine side lever engine
Two metal models of 4-bladed screw propellers, right and left handed, for twin screw double ended ferry steamer (Marked DGR & DGL). Two metal models of 4-bladed screw propellers
Three models in Wood. Forms from which the blades of Screws, in general, are obtained. ( They are marked respectively A,B & C) Three models in Wood. Forms from which the blades of Screws
The original varying-pitch screw-propeller. Full size in gunmetal. Woodcroft's patent. The original varying-pitch screw-propeller. Full size in gunmetal. Woodcroft's patent