A Jianyao bowl, 11th-12th century. Photo Bonhams

Of conical section, the interior and exterior surfaces below the chocolate brown mouth rim covered in a thick viscous black glaze of 'hare's fur' markings that pools unevenly in welts around the exterior to expose the russet hue of the unglazed walls, low foot and recessed base. 5in (12.5cm) diameter. Estimate US$ 1,000 - 1,500 (€730 - 1,100)

Bonhams. ASIAN DECORATIVE WORKS OF ARTS, San Francisco, 25 Jun 2014 10:00 PDT - www.bonhams.com