From the eleventh century onward, the shoulder and belly of spherically shaped northern jars, a standard of Tang aristocratic taste, gradually began to expand. This type of rather cumbersome vase, appealing for general domestic use, was widely produced in the jun kilns of Henan and in adjacent areas, possibly initiated there by Henan shops in the late Song. The shape was often found in Yuan tombs (CGK Zenshu 1983 vol. 9: pls. 5, 54). The wide foot edge with unevenly coated glazed areas at the base are a stylistic trait of Yuan jun ware.