The semi-translucent beige disc bi carved with three chilong in low relief surrounding the central disc with raised bosses, mounted within a deftly carved zitan table screen, the front with a carved central wood boss locking into the back panel to secure the jade, the frame densely carved overall with dragon and stylized scrolls, the reverse circular panel inscribed with imperial inscription in gilt. Qing Dynasty period. 清 螭龍紋玉璧配紫檀框