This beaten copper, hand-engraved basin is semi-spherical in shape, and has contrasting colours. The bas-relief lithography has been filled using an organic compound produced by mixing ashes, pitch, bitime and black plant bonding agents, the result being elegant and of high aesthetic impact. A geometric profile is featured around the edge and gives rise to an engraved register. Four cartouches set at the same distance one from the other interrupt the regularity of the writing, and each contains a flower. Floral shoots, perhaps peonies, branch out along the lower band. Moving downwards, the background features an elaborate, complex plant-shaped decoration.