齊家文化五孔白玉玉刀. Qijia Culture Jade Knife, L. 46cm, W. 12cm T. 0.5cm,800grams

 a18

 

 

1-1F11GK50B08With the shape of trapezoid, this Qijia CuluteS__2826264 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 convex profile. Antiquity evidences include additive crystal, cleaving vein and differential weathering. In addition, the back end of the knife is seen calcification phenomenon. One of the hypotenuses is seen several small cracks owing to the effects of ages.(Right image is the location for Reman reading )齐家文化五孔白玉玉刀L. 46cm, W. 12cm T. 0.5cm, 800g本器白玉雕琢, 呈扁梯形, 刀背较厚, 有大小不一, 排列不整齐, 单向钻成之五孔, 全器有增生晶体, 冰裂纹, 石灰沁等古玉迹象。

Appraisal Indexes:

  1. quality of jade: 8
  2. rareness: 10
  3. historical and cultural significance: 9
  4. workmanship: 10
  5. size:10
  6. condition: 10

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