Please help identify silver hallmark, maker's mark on snuff box

[Gerox]

Hello All,
There is a nice snuff box, 835 silver.

I can't find the maker's mark.
Has anybody an idea about dating and origin?
Any help would be greatly appreciated. Thank you!

Gerox

[dognose]

Hi Gerox,

An image of the whole item may aid identification.

Trev.

[Gerox]

Hi Gerox,

An image of the whole item may aid identification.

Trev.

Hi dognose,
Here in the whole.

Thanks for the support.
Best regards
Gerox