Water dropper in the form of a Quadruped

By the Eastern Han period (when the Han capital was located in present-day Luoyang, Henan province), Chinese potters had discovered the efficacy of using lead-fluxed glazes for their ceramic burial wares. As a fluxing agent, lead oxide lowers the melting point of a glaze, reducing the amount of fuel required for firing. Copper and iron metal oxides were added to the glaze to impart the green and brown colors reminiscent of bronzes with different patinas; they were thus especially useful for glazing ceramic wares that imitated more expensive bronze ritual vessels. The decorative elements on these objects—mystical mountains with swirling clouds, mythical beasts, immortal figures, and bear-form supports—are associated with cosmological realms of immortals and closely replicate the relief ornamentation on sumptuous Han bronzes. Although the tombs of the most wealthy and important Han personages continued to be furnished luxuriously, ceramic reproductions of expensive burial goods and tomb sculptures representing animals, servants, and entertainers became acceptable substitutes for real objects and living creatures.