A copper red glazed bowl, Yongzheng six-character mark and of the period. Photo Bonhams

Its wide, curving well displaying a clear, celadon-tinged glaze that continues over a raspberry red layer of copper red on the exterior walls and across the deeply recessed base displaying the six-character mark in regular script surrounded by a double ring drawn in underglaze blue. 6in (15.2cm) diameter. Estimate US$ 8,000 - 10,000 (€5,900 - 7,400)

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