A delftware octagonal pill slab

A delftware octagonal pill slab, painted in blue with the arms of the Worshipful Society of Apothecaries and their motto 'Opiferque Per Orbem Dicor', the edges with traces of manganese glaze, late 18th century, some restoration, 30.5cm. Cf. Jonathan Horne 2002 Catalogue, No.02/11 for a similar example. Also, lot 257 Ceramics and Glass, 4th June 2008 for an example sold at these salerooms.