www.925-1000.com

Hi.
The assayer is Nikolai Lukich Dubrovin from Moscow but who is the silversmith?
Click on the image for better qualitty.
I will not make a better photo:(
Regards

Hi,
Not well struck maker`s mark.Possibly Yakov Viberg. Виберг Яков Compare with this milk jug.
Regards

Hi AG2012
Thanks for the answer. Unfortunately, the sign is badly visible, and we are guessed that it may be Yakov Viberg.
Regards