Glazed pottery was a new invention in the pottery-making industry of the Han Dynasty. It was made by firing ordinary clay. It had a red body, on which a layer of lead glaze was applied, which could be yellow, tawny or green in color. The firing temperature was about 800℃. Such vessels were popular in the Yellow River Valley and other northern regions, therefore they were also called the "northern glazed pottery". As the pottery was not hard, and the glaze peeled off or deteriorated easily, they were used mainly as burial objects. This glazed jar, with animal relief on the upper part of its abdomen, is a masterpiece of the glazed pottery.