Scale: Unknown. A model of a four-bladed propeller and a section of propeller shaft showing a method of connecting and disconnecting the propeller from the power source as proposed by W. Eames circa 1852. The propeller itself and parts of the frame have been made in brass, while the shaft, much of the disengaging gear, and section of crankshaft are made in steel. A hand written label has been pinned to the surface of the baseboard, which reads "'Arrangement for connecting and disconnecting propeller shafts of marine engines in any position, Proposed by W. Eames C.E.R.N". Above this a paper label has been applied marked "4".Original size: 249 mm x 778 mm x 225 mm
