Scale 1:48. A drawing of the Royal yacht Mary (1728), made by Adam Hayes at Deptford Dockyard and dated 9 December 1783. Showing sheer lines with internal detail, a plan of the upper deck, and tables of dimensions, masts and spars. With the title: 'A draught of His Majesties yacht Mary in the Single dock under a very large repair. Proposed to be rigged as a ship with the alterations shown in green'.