69 years. Sisulou Lion Head 1949 was produced in the northwest mountainous area of Beijing, 69 years ago. Crystal clear, complete jade, the originator of the lion. The lion's head is one of the four famous stones in Wan Wen walnut, and the lion's head in Siweilou is named after its place of origin, and its shape is closest to that of the old stuffy pointed lion. Its bottom is shaped like chrysanthemum, so it is called chrysanthemum bottom.