SONG DYNASTY (960-1279 AD),OR EARLIERThe mythical beast, tianlu, is depicted with a broad snout, bushy eyebrows, a single horn and mouth agape, exposing the fangs and tongue. The curled tail is flicked to one side. The stone is of a greyish-celadon tone with areas of russet.6.6 cm. (2 1/2 in.) long