Unnamed 250ft 3 masted central Battery Ironclad Steam Frigate (1866)
Scale 1:24. Plan shows the midship section design drawing for a unnamed 250ft 3 masted Central Battery Ironclad Steam Frigate (1866). The title of the plan is "Midship section for an Ironclad frigate of 3082 Tons and 600 H. P.".