Hi omitohud -
just to explain the essentials to you:
the shown marks on your object from left to right:

the explanation for the marks:

something like a controlmark (Russian law ask that all single parts of an object - handles, spouts etc. - must be marked. On better objects this sometimes "ugly" optic was averted by this mark. Notice the little dot left of the neck = townmark Moscow.

Kokoshnik mark (1908-1926) with silvercontent 84 = 875/1000 and the townmark for Moscow, the Greek letter "Delta"

The firmlogo (name) of the maker - here Fabergé, above with the Imperial Eagle for Court Jeweller. The shown marks were only used in Moscow - please compare!
Two solutions:
1) Though your object is of very good quality - the Fabergé mark is absolute wrong and badly made = NO FABERGÉ! Maybe the original maker is overstamped by the Fabergé mark - that would explain the other in my eyes authentic marks - the piece is an authentic Imperial Russian object by a very good but erased maker.
2) The style, the Latin monogramm and the quality leads to England or France (in Russia lived/worked many Europeans, so Latin monogramms are not seldom!), all marks are false and the original marks were erased.
Whatever it is, the only answer I can give you with 100% certainity is: it is no Faberé!
One have to see it in person to say more.To avoid the usual coming sensless discussions: This is
my personal opinion, only supported by over 20 years of experience with Russian silver....
Regards
Zolotnik