Lot 67. A black glazed conical bowl with russet 'partridge-feather' markings, Northern Song-Jin dynasty (960-1234); 5in (12.6cm) diam. Estimate US$ 3,000 - 5,000 (€ 2,700 - 4,400). © Bonhams.

Carefully potted with a flared rim to the sloping walls raised on a low foot ring and shallow recessed base, the shiny black glaze showing matte russet splashes of large size across the deep well but densely mottled on the exterior walls with tiny specks of russet that also appear on off-white surface of unglazed fabric along the exterior foot.

Provenance: Property from a San Francisco Estate.

Note: The bowl is of a well-known type preserved in museum and private collections, related to shards excavated in layers datable between 1050 to 1150 at the Guantai kilns, Hebei province: see Robert D. Mowry, Hare's Fur, Tortoiseshell, and Partridge Feathers: Chinese Brown- and Black- Glazed Ceramics, 400-1400, Cambridge, 1996, no. 38a & b, pp. 142-144.

Bonhams. Fine Asian Works of Art, San Francisco, 25 Jun 2019, 10:00 PDT