Lot 56. A 'Yue' melon-form jar, Tang dynasty (618-907). Height 4 5/8  in., 11.8 cm. Estimate 10,000 — 15,000 USD. Lot sold 21,250 HKD. Photo Sotheby's.

The rounded sides divided into four lobes with vertical notches, surmounted by a short neck with a lipped rim, covered inside and out with a pale grayish-green glaze save for the footrim. 

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