210ft Unnamed proposed 3 masted steam gun vessel to carry 4-12 1/2 Ton Guns (1868)
Scale 1:192. Plan shows the sketch of sails of a 210ft Unnamed proposed 3 masted steam gun vessel to carry 4-12 1/2 Ton Guns (1868). The title of the drawing is "Sketch of Sails for an Iron Armour Plated Gun Vessel of 300 Nom H.P.".