Scale 1:48. A plan showing the upper deck , as fitted, of the Admiral class barbette battleship Camperdown (1885). The drawing shows subsequent corrections and alterations in red ink, dated July 1900. The signature of the Portsmouth Yard Chief Constructor H. E. Deadman dated 10 October 1889 is present on the plan. The signature of the Portsmouth Yard Chief Constructor J. A. Yates, dated 21 September 1900 is also present on the plan.