Genuine Tortoiseshell Cufflinks and Tie Pin Set

This is a set of cufflinks and a tie clip made from traditional Honbekko (genuine tortoiseshell), a specialty of Nagasaki.
These accessories feature the beautiful contrast of amber and brown unique to tortoiseshell.

As this was a gift, I am unable to provide further details.
It appears to have been stored at home for a long time, so the case has some scratches.
Thank you for looking.