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One of the great classical forms of Chinese porcelain is the Lonquan ewer. These green-glazed wine vessels are named for the the Longquan kiln complex in (what is now the) Zhejiang province of South China. The ewers originated in the Song dynasty and the form was characteristic up until the Ming dynasty—but perhaps the heyday of Lonquan ware was during the Yuan dynasty when Mongols ruled China. I suspect most (or all) of these examples are from the Yuan dynasty. Look at the beautiful pear form of the vessels and the sinuous grace of the handles.