Carved with yellow tone jade, this Qijia Culture object has the form of knife with trapezoid shape handle with an unit directional drilling hole between the handle and the blade which has one side sharp one side blunt. Antiquity evidences include diffusive markings and exposed crystal plane.
With the shape of trapezoid, this jade knife is made of semitransparent jade. It is seen five different size holes with unidirectional drilling on the upper part of the blade. Both sides of the blade have shown convex profile. The color and quality of jade are similar to those of the jade knife of Shanghai Museum collection. Antiquity evidences include cleaving vein, diffusive marking and mica.