Lot 249, A pair of 'Qingbai' cups, Song Dynasty. Estimate 5,000 — 7,000 USD. Photo: Sotheby's.

each thinly potted with the rounded sides rising from a short tapered foot to a raised rim, covered overall with a translucent blue-tinged glaze pooling to aquamarine color around the foot, the base partially burnt brown in firing (2). Diameter 2 7/8  in., 7.2 cm

Sotheby's. Important Chinese Art, New York, 16 Mar 2016, 10:00 AM