Hi Mart
Thanks for the great picture.
The Russian name for the timber seems to be ",Kapokorn"
I have another smaller box (posted on this forum before ,with gold and sapphire thumb piece) posted here again.
In a timber that is called Amboyna or Thuya wood. Used a lot in French furniture,mainly as a decorative veneer.
Which are now a protected species ,similar to rosewood and ivory.
I am not sure if the Russian species is the same or different? Russian timber looks a little different (a bit similar)
![Image](https://i.imgur.com/h9VGgjf.jpg)