Web site: https://www.digbyantiques.co.uk/
This is a super little cowrie snuff box, maybe for a lady, the shell is particularly attractive.
There are no marks to the silver, but this is quite common on such a small item of silver at this time.
It opens and shuts as well as the day it was made, it has a lovely concealed hinge.
It is in wonderful order and such a sweet item.