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Working model of the double trunk steam engines, as used on HMS 'Minotaur (1867) and HMS 'Northumberland' (1868)
Hand crank model, of the two-bladed lifting screw propeller, as fitted to HMS 'Blenheim'
Working model, of a pair of single horizontal cylinder engines, with steam jacketed cylinders as fitted on HMS 'Monarch' (1868)
Drawing of a small-tube 'Express' type detailing the Joseph W. Reed boiler tube joint
Working patent model, scale 1:16, of a double piston-rod vertical marine paddle wheel engine
Self-Pitching Carbon Fibre Cyclic Pitch Propeller, prototype, with wooden transport box and steel transport box trolley
Working engine models of the P.S. 'Princesse Henriette' and P.S. 'Princesse Josephine'
Model, of a cycloid form paddle wheel, based on Joshua Field's initial ideas and Elijah Galloway's later patent
Printed copy of the opening pages of Jonathan Hull's 'A Description and Draught of a Newly-Invented Machine