Scale: 1:24. A sectional model depicting elliptical stern of HMS 'James Watt' (1853), a second rate 91-gun ship. The model is largely constructed of wood with the outboard hull painted black, with two white stripes for the gun decks, and then black topsides. There are 16 gun ports, the insides of which are painted red.

Internally the model is finished in a creamy white colour overall, including deck beams and shelves, with the three decks scored with their deck planking, which are stained and varnished. The stern galleries are finished in a black with four dummy windows at the stern, and unglazed quarter galleries, all of which are surrounded by a stern walk with a gallery rail.

There is an original metal display label painted black, attached above the stern galleries ion the centre inscribed "Elliptical stern of HMS James Watt 1853".