Lot 1350. A small Shanxi black-glazed 'oil-spot' bowl, Northern Song-Jin dynasty (960-1234). Diameter 3 3/8  in., 8.7 cm. Estimate $3,000- $5,000. Sold: $16,250. © Sotheby's

the deep rounded sides rising from a short foot, covered overall with a lustrous black glaze, suffused with irregular metallic russet 'oil-spots', the glaze falling short of the foot to leave an unglazed area covered with dark brown slip.

Sotheby's. Saturday at Sotheby’s: Asian Art, New York, 18 March 2017