[A Wedgwood basalt miniature plaque depicting Sir Robert Walpole] [art original].Maratti, Carlo, 1625-1713, artist[18th century?]zxxTitle devised by curator.Matte black ceramic monochrome medallion with bust of a man in profile facing left wearing a wig.Modelled by Carlo Maratti: "C. MARATTI" impressed below bust. The reverse impressed: Wedgwood.