During the Warring States period and Han dynasty, a great variety of carved embellishment and decoration on jade bi discs emerged. In addition to lavish grounds of raised bosses and spirals, openwork and pierced techniques skilfully executed with metal tools were particularly favoured. The present lot's double rings joined by three small segments is noteworthy as an example of the carver's ingenuity.|Compare a related concentric pierced jade huan disc, Warring States period, illustrated in Compendium of Collections in the Palace Museum: Jade 3, Beijing, 2011, p.128, no.124.|青色玉質，局部有深褐色斑塊。此玉璧形制規整，器外緣和孔緣各有一圈突棱，器表飾整齊的浮雕榖紋，璧芯內鏤刻出一小玉環，整體雕工細緻大氣。|北京故宮博物院藏一件戰國時期玉雲紋重環可資比較，見《故宮博物院藏品大系:玉器編3:春秋戰國》，北京，2011年，頁128，編號124。