Etruscan Nenfro statue of a winged lion, Archaic, ca. 550 B.C. Several statues of this type, made from nenfro, a kind of volcanic stone used extensively at Vulci, depict winged lions and sphinxes. These were set up to protect the entrances to subterranean chamber tombs covered by a tumulus (earthen mound). They often appear in pairs and represent the Etruscan response to a long tradition of guardian figures stretching back to ancient Egypt and the Near East.