of circular section, the cylindrical box divided into two tiers separated by a solid plate, held together by a side hinge in the form of a butterfly, its wings outstretched and finely punched with small rings, the pin of the hinge surmounted by a shou character roundel, ornately decorated in openwork around the sides of the box and the hinge with large blooming lotuses borne on meandering foliate scrolls, the top of the box similarly decorated with a border of five bats in flight amongst scrolling clouds, encircling an inlaid jade plaque reticulated with three bats flying amid clouds encircling a flaming wheel in the centre, the gilt-bronze base plate decorated with stylised scrolling lotus in openwork and raised on three circular discs, sliding open at the side to reveal a solid plate engraved with a four-character reign mark