Bluish-grey earthenware with various stamped designs was popularly made during the United Silla period (677-935) in Korea, primarily in Kyongju City. Designs were cut by using wooden stamps when the clay was not yet fully dried. Although earthenware with stamped designs was made all over the world, Korean earthenware has the most elaborate patterns of all. It is interesting to compare it with <i>sueki</i>, Japanese earthenware from the same period, as <i>sueki</i> was rarely decorated with designs. This work displays characteristics of United Silla-period art.