Scale 1:48. Plan shows the hold and sections of the Highflower class screw corvette Esk (1854). The plan shows the sections of the Shell Room at 26,of the Spirit Room, at Frame 10 and Frame 0. The title of the plan is "Plan of Hold of the Screw Corvette building for the Admiralty by Mr J. Scott Russell". The plan bears the signature of Isaac Watts [Chief Constructor 1860-1863] and John Edye [Assistant Surveyor of the Navy 1853-1855].