A 'Jian' 'hare's fur' bowl, Northern Song dynasty. Estimate 5,000 — 7,000 GBP. Photo Sotheby's.

the curved sides rising from a short straight foot to an indented rim, covered with a lustrous blackish-brown glaze finely streaked with 'hares fur' markings, falling short of the foot above the dark purple body, incised to the exterior base with the characters reading Gongyu (For imperial use) - 12.6cm., 5in.

Sotheby's. Important Chinese Art, Londres, 11 nov. 2015, 11:00 AM