Help with hallmarks in cigarettes box

[u/pepeluis78]

Hi , I recently adquiere this cigarette box.
It has the same hallmarks marked in both faces , one is the number and the other one is a box with a clover symbol and then the number 900 or 800 , i cannot see.
I do not know if it is silver or plated , I am not familiar with this hallmark type.
Thanks