Russian marks from Moscow

[huszas76]

Dear members!
Can anyone help to identify the maker and the assay master on this picture? I think it's from Moscow, but I didn't find a good match.
(Maybe the maker's mark is upside down, and the maker is Ivan Vasilevich Zakharov?)



Anyway, this is a bottom of an engraved beaker.
Thank you in advance!
Best regards!
Krisztián

[Ubaranda]

Hi huszas76!

You are absolutely right - the maker is Ivan Vasilevich Zakharov. The assayer is Alexander Staheevich Kudrin (Александр Стахиевич Кудрин). He worked in 1878-1882. Information from address-reference books "All Moscow" (адресно-справочные книги "Вся Москва").
Regards.

[huszas76]

Dear Ubaranda!
Thank you for your answer!
Best regards!
Krisztián