Scale 1:12. Plan shows the sections, body plan, profile, longitudinal half breadth and plan view of an unnamed 27ft self relieving whale lifeboat for Revenue Service (1864). The words "Whale Lifeboat for Revenue Service, Length 27 feet 27 Jan 1864". A note in the top left corner says "BU(M) 18B, 27' WhaleBoat, Box 68/2". The title of the plan is "Drawing of a 27ft Self Relieving Lifeboat". The plan is very fragile, in separate pieces and in need of conservation.