Bian Lian (Stone Knife)
Shang Dynasty
Stone. Unearthed at Shang tomb no. 14, Taixi Village, Gaocheng, Hebein Province in 1973. L: 20 cm, w: 5.4 cm. Research indicates that this knife, kept in a lacquer box, was a medical instrument. (Collection of Hebei Provincial Institute of Historical Relics.)