www.925-1000.com

Hi,
Not a perfect mark, not a perfect image of Michael the Archangel (изображение Михаила Архангела) but no other Russian mark is even close to it.
In newer version of the mark of Michael the Archangel -standing - (1880 - 1890) the image is significantly shorter (see pictures).

Regards

In my eyes yes it is, what else could it be? How about the maker's mark, does it give any clues?

Hi Qrt.S.
Maker`s mark is totally rubbed off.
As you said, what else can it be ? Not even close to anything else.
Thank you.
Have a nice weekend.