This is a mould used for impressing a pattern onto the lid of a porcelain box. It is stoutly potted, the glaze having a hint of pale blue. Diameter 10.5cm. Qing Dynasty c.1675 – 1725.
Reference: A very similar box lid mould is illustrated in page 46 of the 1969 book "Blanc de Chine" by P. J. Donnelly.
Provenance: It was part of The Brooke Robinson Collection of Asian Art formerly housed at Dudley Museum. Brooke Robinson (1836–1911) was a British Conservative Party politician, who was MP for Dudley.
Also from the collection of the late Brian Page (1938-2018), the well-known Oriental art and antiques dealer from Brighton.