A fine teadust glazed pear-shaped vase, Qianlong six-character impressed seal mark and of the period. Photo Bonhams

Stoutly molded with a long cylindrical neck spreading above the compressed globular body raised on a tall and slightly flared foot, the speckled dark and light olive glaze of fairly even hue covering all surfaces except the iron washed foot and burnt a pale chocolate brown over the impressed six-character mark in seal script to the center of the recessed base. 13in (33cm) high. Estimate US$ 40,000 - 60,000 (€29,000 - 44,000)

Notes: For Qianlong vases of similar shape and glaze, see the example in the Victoria and Albert Museum, illustrated in Rose Kerr, Chinese Ceramics, Porcelain of the Qing Dynasty, pl. 25, pp. 47-48 (35cm high); and Christie's, New York sale 2580, 13-14 September 2012, lot 1554 (12 5/8in/32.1cm high).

Bonhams. FINE CHINESE WORKS OF ART, San Francisco, 24 Jun 2014 10:00 - http://www.bonhams.com/