It Has changed to light brown due to aging, it is really great workmanship.
We've drawn a diagram of the phoenix. Material will probably Unikoru, he's hard materials such as whale teeth.
Since it becomes fragile that it is ivory and is not suitable for Yanagihidari
manju netsuke. Whale teeth a more hardness, Kazuno, it is common to make
a hard material such as Unikoru.B