Scale: 1:32. A plan showing the body plan, sheer lines with inboard detail (bow missing), deck plan with details (bow missing), and the longitudinal half-breadth (bow missing) of an unnamed single-masted Yacht (circa 1757) for the Clerk of the Cheque of Sheerness, as taken off on 20 May 1757. Note that the annotation states it was a longboat. As the right side of the plan is missing, the length of the vessel is unknown.