An unusual turquoise-glazed square baluster vase, 18th-19th century. Photo Bonhams

The exterior covered with a bluish-turquoise glaze with a matrix of craquelure pooling to a darker greenish tone around the foot and below the rim. 29.4cm (11 5/8in) high. Estimate: £4,000 - 6,000. Unsold

Provenance: acquired from Roger Keverne Ltd., London, in 2005
The Langsdorf Collection of Qing Dynasty Porcelain, Collection no.37

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