A sundial consisting of an eighteen sided stone block, which has sixteen faces for use as sundials through the insertion of metal plates. The block is mounted on an heavy circular column with spardash finish and without decoration except at the head - where a saw-tooth moulding rings the column immediately below a small plain cornice. The block itself is surmounted by a tapered curved column supporting a stone ball. The monument is sited prominently in front of the castle on Market Square.