Scale 1:48. Plan shows the sections and fly diagram, as fitted, of the M-class submarine seaplane carrier M2 (1919). The plan shows section frames 13, 25, 43, 79, 85, 118, 132, and 150 looking forward. The drawing also includes Frames 32, 60, 92, 101, and 163 looking aft. modifications made in vermillion ink at Chatham Yard, dated October 1927. There is a faded Vickers stamp on the left hand side of the plan. There is a stamp from Chatham Yard Constructive Department, dated 6 September 1923, on the left hand side of the plan. A second stamp from the Chatham yard Engineering Department, dated 16 November 1923. A Vickers stamp with the Admiralty Overseer's signature, dated 23 August 1920 is also present on the left hand side of the plan. There is a small tear along the bottom edge in the left hand corner of the plan.