Suribachi Japanese Roasted salted Sesame Grinders
Has parallel stripe marks all over the bowl,
and a wooden pestle and works well as well is aimed for Sesame grinding.
Especially if roasted and slightly salted first.
It may be useful for grinding fresh wasabi? ( just guessing) but unless you grew your own like Jeremy Clarkson or some kiwis in NZ,
yiu are unlikely to have any anyway.