A large flambé-glazed rectangular pear-shaped vase, hu. Incised Tongzhi six-character mark and of the period. photo Bonhams

Typically entirely covered in a rich opaque glossy ox-blood glaze with some vertical purple-white streaks, the rim and corners fired to a pale colour. 35cm (13½in) high. Estimate: £10,000 - 15,000, CNY 99,000 - 150,000, HK$ 120,000 - 180,000

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