Scale 1:24. A plan showing a section through a wing tank, midships section, section through a transverse oiltight bulkhead, detail of the web on the centreline, section through an oiltight bulkhead in a wing tank, section through an oiltight bulkhead in a centre tank, plan of the upper stringer and plan of the lower stringer of the British Fern (1964), a tanker. The plan is stamped 'Sir James Laing & Sons Ltd., Deptford Yard, Sunderland' and is dated 2 October 1947.