Hap, a covered bowl, had various purposes based on size, shape and material. They are relatively low in height, and their lid and body are shaped with a protruded rim and a furrow, respectively, so that they are finely interlocked. The edges of the lid’s upper side were carved smoothly to form a slope. The upper side itself is divided with two concentric circles, and elaborately adorned with incised or inlaid motifs of chrysanthemum, chrysanthemum vines and lotus petals using different decorative techniques. These covered bowls appear to have been used for cosmetics powder or incense.