Hi Mart,
Thanks for the relevant information, indeed Postnikova as sole information source is not adequate and dated.
Russian national archives and censuses are important sources for relevant information. To research and to understand the information a good knowledge of the Russian language is essential. The more we discover about a particular silversmith, the better. His date of birth, date of marriage, his children, the years he was active, his apprentices and the size of his company and the products made, his manner of working are indeed very relevant.
If the master owned a large workshop and/or factory, we may assume that over the years he used several maker’s marks. And with this master marks based on his initials
MK.
To wrapp up, using your information and for the lack of other possible candidates. I feel no hesitation to attribute the maker’s mark
M•K to:
Maxim Gavrilovich
Karabanov (Korobanov). Максим Гаврилович Карабанов (Коробанов).
I share your opinion. Thank you and good luck with your ongoing research.
Yes Mart, the Russian forum is not the easiest forum. Unfortunately, on this forum the replies sometimes degenerates into a polemic. Often laughable, sometimes painful. Some of the real Russian silver connoisseurs have already dropped out. What others write don't take it personally and keep it up.
Best wishes,
Peter.