A Qingbai  bowl, Song dynasty. Estimate 2,000 — 3,000 USD. Photo: Sotheby's

of conical form rising from a short foot, the exterior carved with wavy lines radiating from the foot, covered overall with a light blue-tinged glaze suffused with russet crackles stopping just short of the foot. Diameter 4 5/8  in., 11.7 cm

Provenance: On loan to the Birmingham Museum of Art, Birmingham, Alabama, 1988-2015. 

Sotheby's. Saturday at Sotheby's: Asian Art, New York, 19 sept. 2015