Antique carved shell kimono obidome

This is a antique obidome that is carved from a shell could even be mother of pearl but im not 100% sure but it looks like it
It is very pretty and has a nice shine to it
This is an antique so it has some use to it but the obidome has been taken good care of and is still usable to wear out with your kimono
Please make sure to look at all the photos to look at the flaws from the age of the obidome
the backing shows signs of age but still can be used