Featured Antique Crystal Bottle W/ Ornate .800 Silver Fliptop-Age-Mark-ID Help??

I don't know that Faberge made their own glass. I suppose it's possible, but the Faberge mark that was posted earlier was a silver mark, had nothing to do with the glass.

 

@Jeanny
That second one is lovely. Definitely Art Nouveau.
Initials on an item denote ownership by someone. Usually engraved by a jeweler, not the maker.
So the fact that the set you show has initials in a similar font, does not mean that the items were made by the same maker.
You need to look at the hallmarks.
In the case of Faberge, there are a lot of fakes.

The pattern on the first bottle you showed looks like a good match.
Glass companies often sold glass to silver companies who then added their silver decorations and sold the items as their own.

In the case of Sperls' bottle there is a hallmark, although it is hard to see.

Welcome to the board. This is a good place to learn.

 

Okay, ... clear that the bottle with silver cap is not a real Faberge. Too bad, would have been nice if it were.