Hi all -
I have my doubts about this stakan (beaker) and the proposed maker. In my opinion neither the marks nor the engraving are as they should be. This typical "Russian" pattern you find often on copies - look for the unprecise engraved edges, details and symetry etc.
The maker Miljukov was at that time very famous and known for his high quality work. I enclose an authentic object from him and his mark.
Regards
Zolotnik