An archaic decorative Bi was rarely carved in a material of rock crystal.
Other than the commonly-seen material-jadestone, crystal was used to be esteemed as the precious gem and being treasured among the noble people.
This crystal Bi was carved on both sides with the characteristic grains-motif.
By traditional craftsmanship, the separated dots were lined up by crossing straight lines firstly.
After polishing the ground, the raised dots were then carved one after another into the domed spirals.
The short and sleek pushing scars left from the blade were obviously observed by a 15x glass.
It was in charming foggy condition when burial earth and rust were preserved within the carving lines. Minutes frets were found along the rim. They were caused due to thousands' years of burial.
Date: Western Han periods(206BC-AD9),
Width: 4.9cm, Depth: 0.7cm.
A CUSTOM-MADE SILK BOX IS INCLUDED.