齊家文化玉刀，L. 36cm，W. 9cm T. 0.5cm。本器由半透明青黃玉雕琢而成，上方有五孔呈單向鑽法，前方寬闊工整，後方較窄留有殘片， 全器拋光精緻光潔，冰裂紋及曝露芯片等古玉跡像明顯。With the shape of a trapezoid, this jade knife is made of semitransparent jade. It is seen five different size holes with unidirectional drilling on the upper part of the blade. Both sides of the blade have shown a convex profile. The color and quality of jade are similar to those of the jade knife of Shanghai Museum collection. Antiquity evidence includes cleaving vein, diffusive marking, and mica.
- quality of jade: 8
- rareness: 9
- historical and cultural significance: 8
- workmanship: 10
- condition: 10