Jade Ko Halberd Ax, L.13cm, H.7.7cm, T.0.4cm, 45grams. Deriving from the pattern of Shang Dynasty’s bronze ko halberd axe ,made of extreme nice quality of Hetian jade, this ko halberd axe is designed by unifying the blade, the flange and the tang into a whole object. The blade whose edge is sharp is seen a nice curving line starting from the tip reaching to the flange. Three vertical rectangular holes have been drilled for the flange while on horizontal one is seen on the tang. Both the blade and the tang are decorated with connected cloud motif.
The quality of jade and carving style of this Ko is similar to the one of unearthed from Xi Shan Han Graveyard, Mangshan township, YongCheng County, Honan Provice, A collection of Shangqiu Museum of Honan Province(L.11.3cm, T. 0.5cm) in terms of jade , carving style and motif.
Aging evidences are obvious to include differential weathering, diffusive marking and cleaving vein. With mastery workmanship, this Han Dynasty ko is one of valuable collectives.