Head 16th-18th century Edo peoples Edo terracotta heads differ from comparable works cast in brass in their greater simplicity, both stylistically and in the incorporation of less regalia. Generally, they are less delicate or refined, with thicker, fuller facial features, and reflect the relative speed with which they were made. It has also been suggested that the king's coral regalia might have been stored on terracotta heads, or that they were used as molds from which to cast brass heads.. Head 316481