Scale 1:24. Plan shows the sheer lines, longitudinal half breadth and body plan design drawing for the A class submarines A2 (1903) and A5 (1904). Anote on the plan states it was repared in September 1906 based on the dcoking plan (number79811) and prints from Messers Vickers illustrating differences between A2 and A5. Part of the drawing is drawn in red ink, indicating the changes specifically for A5.