Lot 4. A white-glazed pottery jar, Tang dynasty. Estimate 5,000 — 7,000 USD. Photo: Sotheby's

the broad-shouldered body rising from a spreading foot to a waisted short neck with everted rolled rim, applied with a greenish-ivory glaze extending over the inside of the rim and stopping unevenly above the base to reveal the pinkish-white body, the interior partially covered with a yellowish-tinged glaze, with three spur marks to the rim, Japanese wood box (3) - Height 7 7/8  in., 20.1 cm 

Notes: Compare white-glazed jars of the same size in the Palace Museum, Beijing, illustrated in Porcelain of the Jin and Tang Dynasties. The Complete Collection of Treasures of the Palace Museum, Hong Kong, 1996, pl. 154; and in the Machida City Museum, included in the exhibition Fascinating Chinese Ceramics: The Machida City Museum and Tokiwayama Bunko Foundation Collections, Tokyo, 2016, cat. no. 28. A pair of larger jars and covers were sold at Christie's New York, 18th September 2003, lot 206, and four white-glazed jars of similar form are illustrated in Mayuyama, Seventy Years, Tokyo, 1976, pls 219-222. 

Sotheby's. Chinese Art Through the Eye of Sakamoto Gor: Early Chinese Art, New York, 13 Sep 2016, 10:00 AM