Late Spring and Autumn Period. Unearthed from Wangshan Tomb M1, Jiangling, Hubei Province, 1965. Length: 55.7 cm; width: 4.6 cm. The blade features a raised central ridge and is decorated with black rhomboid patterns. Near the guard on the obverse side is an inscription in bird script reading: “King Goujian of Yue, made this sword for his personal use.”The obverse of the guard is inlaid with blue glazed glass (liuli), and the reverse with turquoise