Catalogue entry no. 162 by Max Loehr:
162 Animal Mask
Highly translucent, bluish gray jade with light brown veins. This mask was recut from a corner fragment of a small ts’ung. The corner corresponds to the top of the mask; the back is smooth and polished. Except for the high relief of the mushroom-shaped horns, ears(?), and nostrils, the facial characteristics are rendered by incised double outlines. Angular lines at the lower corners of the mask, reminiscent of the bands in the preceding specimen No. 161 may suggest whiskers – even though feline character of this mask is compromised by the horns. A large conical perforation is drilled through the nose from the front; a smaller one joins it from below. Late Shang or Western Chou.