Ko-Type Zhong Vase, Modelled after the archaic jade cong, the body of square section supported on a short waisted footring, rising to a flat shoulder and a circular neck, each corner carved with eight raised horizontal bands, covered overall with a thick ivory glaze suffused with a matrix of iron-gray and golden colored crackles, 6 in highProvenance: From the collection of Margaret Goldney, Berkerly, California, acquired from A.J. Speelman Oriental Art in 1976, see item #4 on the invoice