Jade Bi Disc with double-bodied dragon and phoenix pattern
National Palace Museum, Taipei, Taiwan
Jade bi disc with cross-like design, National Palace Museum
Wide and depressed cutting marks are visible on the surface where the "nail marks" of the design were extended and deepened by the tuo drill.
Jade Bi Disc with double-bodied dragon and phoenix pattern
Late Warring States Period to early Western Han dynasty
circa 275-141 B.C.E.