Ivory and other material from protected species is no longer a normal collecting field. Whether an old piece has an exception is on the papers. The age you see on it is not enough. In the overview Security for collectors this is a warning text, not a market.

What you do

You do not buy and you do not sell without knowing the papers and the rule. You do not take it across a border because it is "only old". If you own something and you are unsure, you ask the competent authority. Until then it stays shock-free, dark, documented, the papers in the document cabinet, the piece not in the open display case as an invitation to trade.

Netsuke and similar pieces

Small carved pieces also follow the text on Netsuke: first determine the material, then store.