Jade has a collar

[Jade collar wall]

Jade collar wall, Shang, outer diameter 12.1 cm, aperture 6.7 cm, thickness 1.4 cm
The ring was eroded into chicken bone white and round due to Qin, with a round hole in the center, three rings of the same string pattern on both sides, and a ring of ridge near the hole
This kind of implements was first seen in the Neolithic period, and still continued in the Shang Dynasty. Previously, it was named breast ring, and it was inferred that it was a female breast ornament. According to archaeological excavations in recent years, it was only known that it was an ornament worn on the wrist