Lot 140. A black-glazed 'ribbed' jar, Northern Song-Jin Dynasty (960-1234). Height 8 in., 20.3 cm . Estimate 20,000 — 30,000 USD. Lot sold 42,500 USD. Photo: Sotheby's 2016

of ovoid form rising to a short neck with lipped rim, the body with a series of evenly-spaced raised vertical trails of white slip, a pair of ridged and tapering strap handles on the shoulder, covered overall in a black glaze and thinning to cream color at the raised ribs and stopping well short of the foot, exposing the buff-colored body, wood stand (2). 

Sotheby's. Important Chinese Art, New York, 13 sept. 2016, 10:30 AM