齊家文化五孔白玉玉刀L. 36.5cm, W. 9.5cm T. 0.5cm, 809g。本器白玉雕琢, 呈扁梯形, 刀背較厚, 有大小不一, 排列不整齊, 單向鑽成之五孔, 全器有增生晶體, 冰裂紋, 石灰沁等古玉跡象。
With the shape of a trapezoid, this Qijia Culture jade knife 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. Antiquity evidence includes additive crystal, cleaving vein, and differential weathering. In addition, the back end of the knife is seen calcification phenomenon. One of the hypotenuses has several small cracks owing to the effects of ages. (Right image is the location for Reman reading ).
- quality of jade: 8
- rareness: 10
- historical and cultural significance: 9
- workmanship: 10
- condition: 10