Period:Neolithic Period Materials:jade Technique: Dimensions:Diameter: 15 centimetres Description: Bi. Made of jade (grey-green.cream). Hole only worked from one side. IMG Comments...

Period:Neolithic Period Production date:2500BC-1800BC Materials:jade Technique: Dimensions:Diameter: 15.30 centimetres Diameter: 5.60 inches Description: Bi with notched edge, made...

Period:Unknown Production date:2500BC Materials:jade Technique:carved Dimensions:Diameter: 21.50 centimetres Description: Black-green colour jade 'bi'. IMG Comments:Rawson 1992:The...

Period:Unknown Production date:3300BC-2200BC Materials:jade Technique:polished, pierced, Dimensions:Diameter: 18 centimetres Description: Disc-bi of opaque yellowish white and rust...

Period:Unknown Production date:3300BC-2200BC Materials:jade Technique:polished (?), drilled, Dimensions:Diameter: 34.20 centimetres Description: Disc-bi of opaque and variegated gr...

Period:Shang dynasty Production date:1200BC-1050BC (circa) Materials:jade Technique: Dimensions:Diameter: 11.50 centimetres Description: Bi. Made of jade (white), pigment (red). IM...

Period:Eastern Zhou dynasty Production date:3rdC BC-1stC BC (circa) Materials:jade Technique: Dimensions:Diameter: 10 centimetres Description: Bi. Made of decorated jade (yellow.mo...

Period:Neolithic Period Materials:jade Technique:polished, carved, pierced, Dimensions:Diameter: 35 centimetres Description: Disc - bi of opaque variegated dark brown, russet and y...

Period:Neolithic Period Materials:jade Technique: Dimensions:Diameter: 19.70 centimetres Description: Bi. Made of jade (grey.brown). The hole has been only worked from one side. IM...

Period:Neolithic Period Production date:4000BC-2000BC Materials:nephrite Technique:cut, polished, incised, Dimensions:Diameter: 21.60 centimetres Description: Disc-bi of semi-trans...