Its next sale takes place on May 25, offers more than 500 lots and features pieces by all the major manufacturers including Minton, George Jones, Wedgwood and Massier.
Among the highlights are the two Minton rarities pictured here.
An 18in (46cm) high figure group of Europa and the bull from c.1860, the only known example in majolica, is estimated at $8000-12,000.
The other rarity is a full-colour version of a stag and hunting horn garden seat designed by James Gamble c.1870. It has an estimate of $12,000-15,000.