Period:Neolithic Period Production date:2000BC-1500BC Materials:jade, nephrite, Technique:ground, perforated, Dimensions:Height: 20.50 centimetres Description: Jade (green) ceremon...

Period:Unknown Production date:2500BC (circa) Materials:jade Technique:ground, polished, Dimensions:Height: 49.50 centimetres Description: Tall jade 'cong', divided into 19 section...