Lot 50. Two glazed white stoneware cups, Sui-Tang dynasty (581-907). Height of taller 2 7/8  in., 7.3 cm. Estimate 10,000 — 15,000 USD. Lot sold 68,750 USD. Photo Sotheby's.

each thinly potted of deep U-shape, supported on a low flaring foot, covered overall in a transparent glaze suffused with crackles, pooling to shades of green on the interior and around the foot, the base unglazed revealing the white body (2). 

Note: See a set of four similarly glazed white stoneware cups in the Meiyintang Collection, illustrated in Regina Krahl, Chinese Ceramics from the Meiyintang Collection, London, vol. 1, 1994, no. 200. Other similarly shaped cups excavated at the Xing kiln site in Hebei province, attributed to the Sui dynasty are illustrated in Wenwu, 1987, no. 9, p.4, fig. 6, and p. 5, fig. 10.

Sotheby's. Song Tradition: Early Ceramics from the Yang De Tang Collection. New York, 17 mars 2015, 11:00 AM