Scale: 1:48. A plan showing the profile as fitted of the central-battery ironclad Alexandra [ex-Superb] (1875). The signature of the Chatham Yard's Chief Constructor's R. P. Saunders (dated 21 April 1877) and C. T. Glenn (dated 6 March 1891) are present on the plan. There is a huge tear on the left edge of the plan, another in the middle of the plan and a smaller tear on the right hand edge. Alterations have been detailed on the plan in red ink.