Scale 1:48. Plan shows the proposed sheer lines, profile, body plan and longitudinal half breadth of a unnamed first class turret and broadside ship. The length of the vessel is 380 feet BP and the burthen in tons is 7571 68/94. The drawing also shows two Coles turrets on an armoured citadel, suggesting this plan may be an early design for the Devastation class turret ship Devastation (1871). The plan is very fragile and torn in numerous places.