Black glaze with silver tea cup. From the end of the Tang Dynasty to the Five Dynasties, Jiancha method to become the mainstream instead of Diancha, that why Competing Tea is the most popular in the Northern Song Dynasty , There are two way for competition: One for color, the whiter the better. Two for appearance of water marks, the later and longer the better. Under the promotion of such a tea culture, black porcelain is more suitable than celadon. Among the black porcelain tea sets, Jian cup is the most attractive at that time. During the Song Dynasty, The early Jian kiln was an unknown kiln, and later turned into an important and historic kiln. It was due to the tea style and aesthetics at that time, praise of the emperor of Song Huizong and nobility. Yulinting kiln outline in silver cup is built and decorated with black glaze technology, which reach the peak of art in that time. Southern song dynasty, Height 5.2cm, Caliber 11.3cm