Stamp on silver help identify

[Art_beauty]

Good day!
Who knows, that could mean a brand on the silver speaker /1864 84 emblem of Moscow (George on horseback) and master ISE.

Interested in what the master or workshop ISE?

[Grigory]

Сообщение от Art_beauty

Interested in what the master or workshop ISE?

Where's the photo? ..................

[sdk321]

AS - assay maker Svechin A. , worked in 1862-1875 gg
I.S.G. - Gubkin Ivan S. , a merchant and manufacturer . Established a factory silverware in 1841 . In 1861 g.bylo 88 workers, annual turnover of 500 000. AVAILABLE : cutlery , tea utensils , dishes, bowls of fruit, with black buckets , mugs with carvings.
Products are stored in the State Historical Museum .

[Art_beauty]

Thank you.
About Gubkin found.
But here's initials ISE.
The last "E" and not "T".
Can you say something?
Photo attached.

[sdk321]

Laid out by a fragment of your salary is difficult to judge the quality of work.
But it seems that this is not Gubkin.
Although he made a lot of salaries.

Well then - unknown master .....
For in reference I.S.E.
does not appear.

[biskvitaik2011]

Unknown masters more than the known.
Hallmarks are real, and can be seen in these photos.
Apparently one in the aureole, other salaried.