… horn, antlers, coral, mother-of-pearl and other animal carving material, and articles of these materials …
Explanatory notes
… horn, antlers, coral, mother‑of‑pearl and other animal carving material, and articles of these materials … or otherwise worked by grinding, drilling, milling, turning, etc. However, pieces which are identifiable as … and wild boar tusks, rhinoceros horns and the teeth of all animals are regarded as ivory (see Note 3 to Chapter 5). …