Help identifying the wood on this shamisen?





Can someone help me identify this wood?

I bought a second hand shamisen. But don’t know the wood. But the shamisen is old so is not been the most easiest to identify what wood it is. I just want to know for my own curiosity. The suggestions I have is hard rose wood and possible purple rose wood.

There is a symbols in the dou and on the side in Japanese for (Oaktree 柏木) but nothing suggest Karin shamisen as it is heavy and it’s colour changes depending on the lighting like light brown to orange to like dark brown. Any input is appreciated!