A copper-red glazed stembowl, Qianlong Seal Mark And Period. Photo Sotheby's

the deep rounded sides supported on a spreading foot moulded with a raised fillet, the exterior applied with a rich copper-red glaze, the interior and base glazed white, inscribed with a six-character seal mark to the base; 19.2cm., 7 1/2 in. Estimation 20,000 - 30,000 GBP

Provenance: A Far Eastern Private Collection, acquired in the 1980s.

Sotheby's. Fine Chinese Ceramics & Works of Art. London | 06 nov. 2013 - http://www.sothebys.com