Jade Bi Disc, mid-Warring States period to mid-Western Han dynasty, 375-74 BCE

Jade Bi Disc，mid-Warring States period to mid-Western Han dynasty， 375-74 BCE

• Image Number:K1C002006N000000000PAB
• Dynamy:Warring States period/span>
  The original color is blue white jade, but due to different burial environments, after years, Some parts are slightly bleached and light brown. As for the valley lines close to the outer circumference and the inner circumference of the middle hole, they are often irregular, because the contour of the inner and outer circumference must be clear; However, in terms of production, it is difficult to carve out a complete pattern of grain patterns that are similar to the inner and outer circumference, thus forming the features seen today