A rare Vietnamese blue and enamelled dish, 16th century. photo Bonhams

Sketchily painted at the centre in pale blue with a single crouching bird, all within elaborate bands of iron-red and green enamel simple scrolling foliage within a barbed edge, the glaze extensively crackled. 34.5cm (13½in) diam. Estimate: £2,000 - 3,000, HK$ 24,000 - 35,000

Bonhams. Fine Chinese Art, 13 May 2010. New Bond Street www.bonhams.com