Scale 1:24. Plan shows the body plan design drawing for the 298ft Minelaying submarine P.411, P.412 and P.413 (cancelled 1941). A signature with the letters 'G. J. S.' can be seen in the bottom left corner. A Scott's Shipbuilding stamp, dated 21 January 1941, is present in the top left corner. These submarines were ordered from Scott's Shipbuilding on 13 January 1941 and then cancelled in September 1941. A note on the plan states that the plan was downgraded to unclassified dated 20 February 1985.