In a spirit already Jugendstil / Art Deco very modernist and purist of the early twentieth century, around 1905.
Possibility: Viennese secession (Wiener Werkstatte), Darmstadt, in a spirit almost Arts & Crafts.
Several hallmarks including an Austro-Hungarian are present on various elements of the candlestick whose punch of title, master goldsmith.
In very beautiful state of conservation.
Very qualitative work similar to Hugo Leven, Josef Maria Olbrich, Joseph Hoffmann, Christopher Dresser, Emil Kadzig, Eisenloeffel, Marianne Brandt...