The jade articles in the case to the right include belt fittings, ornaments for men's hats, and a seal used by senior officials. One of the belt fittings (cat. fig. 350) and a hat ornament (cat. fig. 351) both display a scene of a falcon attacking a wild goose. The annual spring hunt for geese (or swans) was an important event for nomadic peoples in North China, beginning with the Khitans of the Liao dynasty (907–1125) and continuing under the Mongols.