Jade knives, as ceremonial utensils, prevailed in Erlitou culture in Xia Dynasty. They were both symbols of power and harvest. As a ritual vessel, there are roughly two shapes of jade knives. One is a flat rectangle, with the back of the knife on one side and the blade on the other. The other is made into a shape with a handle. The common decorative patterns in jade knives include the net patterns formed by the intersection of straight lines and the face or animal face patterns representing some symbolic meaning. The more exquisite ones are also engraved with patterns or inlaid with decorations such as jade. In the middle and late Shang Dynasty, jade knives were mostly jade, slightly curved and ornate, with convex teeth on the back and complex decorative patterns on the surface.
it is recommended to put it in the office and study, not in the living room.