… Ivory, tortoise-shell, whalebone and whalebone hair, horns, antlers, hooves, …
Explanatory notes
… 05.07 ‑ Ivory, tortoise-shell, whalebone and whalebone hair, horns, antlers, hooves, … the bony substance which constitutes : (1) The tusks of the elephant, hippopotamus, walrus, narwhal or wild boar. (2) … their frontal bones. Antlers are branched horns of deer, elk, etc. The heading also covers powder and waste …