Scale: Unknown. A section of a gunboat showing the plan for its armour plating, as patented by Mr Jones in 1861. The model has been made entirely of wood with the individual plates, frames, decks, and other structural elements individually applied to a a rectangular bevelled baseboard. Both the model and baseboard have been stained a uniform dark brown colour, and the overall effect is of a two dimensional ship plan. A paper label has been applied to the bottom left hand corner of the upper surface of the baseboard that reads "No.8 Sectional models shewing method proposed for armour plating a gunboat 1861 RNM p.31." The baseboard is supported by two rectangular wooden blocks applied to its underside.