Antique Vienna Secessionist Bespoke Jeweled Brooch, Fiery Opal, Gems, Silver on Brass c. 1890s glass I'm unable to be certain

I'm unable to be certain

just make a living space into your own personal Alpine getaway

The top holds a hand painted miniature with a Diana the Huntress motif

He made his vows there in 1777

The look of needlepoint and finer petitpoint (figures)

Antique Vienna Secessionist Bespoke Jeweled Brooch, Fiery Opal, Gems, Silver on Brass c. 1890s glass I'm unable to be certainI've tried to research that 16 dot in square mark on the back to this bespoke brooch, in hopes I could identify the maker artist. So far no luck. I would fly to Vienna to research, but of course pandemic. If you recognize it or can tell me more, experts, please do email. Thanks. That said, It is a stunning little thing. Worked with intense precision, the recess set stone is fiery opal in a flat surface which dances in light. The 3 emerald colored