Lot 21. A blue-glazed square-form vase, Qianlong seal mark and period (1736-1795). Height 11 3/8  in., 28.9 cm. Estimate 20,000 — 30,000 USD. Unsold. Photo: Sotheby's.

robustly potted, of archaic cong form supported on a straight foot and surmounted by a short circular neck, the rectangular body molded on opposite sides with elephant-head handles suspending fixed rings, covered overall in a rich blue glaze thinning to a pale tone around the edges, the base with a six-character seal mark in underglaze blue.

Sotheby's. Important Chinese Art, New York, 13 Sep 2017, 10:00 AM