That's odd - I thought I gave a response to this one. But obviously not.
I think it's a regular late 19th century "Bohemian" piece, of a type that is difficult to pin down to any particular maker. The rim appears to be cut flat and finised with gilding - quite typical for Bohemian work, although some English wares of the period looked very similar. Also the enamel decoration seems typical for "Bohemian" as well as the dark colour of the opal glass.