An unusual 'Guan'-type vase. Yongzheng mark and period. Photo Sotheby's

the spherical body with a convex base, the interior fitted with a cylindrical tube, covered inside and out with a thick and finely crackled pale blue glaze, with a six-character Yongzheng mark in underglaze-blue below the mouth. diameter 5 3/4 in.,14.6 cm; Estimate 3,000—4,000 USD. Lot Sold 194,500 US

Sotheby's. Informing the Eye of the Collector: Chinese Ceramics and Works of Art from J.T. Tai & Co. 22 Mar 11. New York www..sothebys.com