Circular inclining dial for latitudes 0°-60° North. The dial has a silvered hour-circle hinged to the North side of the base-plate and numbered IIII-XII, I-VIII. The gnomon is supported by circular arcs, decorated with a wheatsheaf design and folds flat when not in use. The latitude arc is silvered, hinged to the East side of the base-plate, and divided from tip 0°-60°. The compass is silvered and set into the base-plate. It features an eight-point rose with the cardinal and quadrantal points marked by English initials and is highly decorated with a floral design. Two brass spirit levels are set into it and a radial arm clamps the needle against the glass. On the hour-circle, it is signed 'Cox . London'.

Cox was a common name among London instrument makers. This dial was probably made by one of the Cox dynasty who worked in the Barbican in the late 18th and early 19th centuries, but it is difficult to be more precise than this.

For more information regarding this dial please refer to the OUP & NMM catalogue, 'Sundials at Greenwich'.