A small red-glazed bowl. Yongzheng six-character mark and of the period. photo Bonhams

Finely potted with a thin flared rim and deeply rounded sides rising from a gently tapered foot, the exterior covered with a maroon glaze mottled with pale celadon speckles, the interior glazed white. 13.4cm diam. Estimate: £4,000 - 6,000, CNY 40,000 - 59,000, HK$ 48,000 - 72,000 

Provenance: Professor E.T.Hall, no.2
Christie's London, 7 June 2004, lot 91
The Inder Rieden Collection

Bonhams. Fine Chinese Art, 10 Nov 2011, New Bond Street www.bonhams.com