The overall shape of this jade sword is a trapezoidal inverted trapezoid with a rhombic cross section. The two sides are slightly thin to swell in the middle, and the front and back sides are ground-relief embossed with geometric patterns. They are commonly used in the Han Dynasty. The top is plain, polished and flat. The middle hole is larger; the holes on both sides are smaller, the shape of the device is regular, and it has obvious characteristics of the times。 5cm in height and 8cm in length。 Source: private collection from Pennsylvania