Scale 1:24. An ozatrace copy of a plan showing the helicopter mechanical workshop on the ice patrol ship Endurance (1956). There are 3 Harland & Wolff builder's stamps dated 10 July 1967, 4 October 1967 and 23 November 1967 on the drawing. This plan is noted as Sheet 3 of 3. The drawing is clearer on the reverse side due to the copying process.