Silver miniature with Ivory motiv - hallmarks ?

Silver miniature box with Ivory motiv.
Any help with hallmarks?

The brand is very readable. Hexagon - it should be the hallmark Austria 1866-1922, office Vienna - “A”, silver 900/1000.

Thanks for info.
I am sorry that it is not Josef Hofmann workshop, similiar stile boxes. :bulb: :slight_smile: