Scale 1:48. Plan showing the inboard profile plan illustrating the use of iron knees and ides ( some later omitted ) for Calliope (1837), Andromache (1832), 28-gun, Sixth Rate Sloops, building at Sheerness Dockyard and Pembroke Dockyard respectively. Annotation on right: "Mem. The whole of the iron diagonal sides, with the exception of those marked with a cross - are to be omitted."