Diameter 10.35 cm, inner diameter 4.05 cm, height 2.92 cm, thickness 0.25 cm, handle length 2.3 cm, handle width 1.95 cm
Made of bronze, this circular disc-shaped object resembles a jade bi, featuring a central hole surrounded by a raised collar that extends above the disc's surface. A rectangular handle extends from one edge of the outer perimeter. Near the edge, two concentric circular patterns encircle on both sides, framing three identical bird motifs arranged head-to-tail between the circular and the collared rim.
The stylized birds feature hooked beaks, round eyes, and long crests atop their heads, compact bodies with short wings and long necks, legs, and tails A scar-like mark is evident on the upper collar adjacent to the hole, and remnants of copper rust persist on the surface. The stylized birds feature hooked beaks, large circular eyes, elongated crests atop their heads, compact bodies with short wings, and long necks, legs, and tails. A visible flaw marks on the collar near the central hole, while extensive greenish verdigris patina covers the surface. The identical motifs on both faces suggest that the disc object was designed to be displayed vertically and inserted into another vessel, with the short handle likely serving as a tenon for insertion into a base. This artifact holds significant historical, artistic, and scientific value, providing crucial physical evidence for studying the bronze-casting techniques and bronze civilization of the ancient Shu people in the Chengdu region during the Shang and Zhou dynasties.