A Junyao Shallow Dish. Northern Song-Jin Dynasty, 11th-12th Century. Photo: Christie's Images Ltd 2012

The shallow sides flare out from the small unglazed foot ring to the shallow upright rim. The interior, exterior and interior of the foot are covered in a glaze of milky blue color that thins to mushroom on the edge of the rim. 7 in. (17.8 cm.) diam. Estimate $8,000 - $12,000

北宋/金 鈞窰天藍釉盤

Christie's. Fine Chinese Ceramics and Works of Art Part II, 13 September 2012. New York, Rockefeller Plaza