This artifact was excavated from a 35-meter-long keyhole-shaped tumulus of the early 6th century, situated at Hiyama in Tatsuno City, Hyogo Prefecture. Archaeological excavations in 1954 (Shôwa 29) turned up numerous artifacts from its stone chamber with side entrance, including mirrors, decorative ornaments, horse fittings, weapons, earthenware, and more. Clay figures (J., <i>haniwa</i>) were also found in the tumulus. <i>Sueki</i> (""unglazed earthenware"") jars decorated with people and animal figures, in particular, give us valuable insight into the daily life of people in the Kofun period (ca. 250-ca. 600). Gold earrings that were made on the Korean Peninsula are also a valuable source of information for the study of cultural exchange between Japan and foreign countries at the time.