I'm not an expert, but Depose sounds French to me. The shapes are also reminiscent of the French Art Nouveau, although the forms occur in more European countries. So I can of course have it completely wrong. However a nice looking piece. Success with your quest.
Hello, the word depose can also be found on German objects intended for export. The marks in the second row are from left to right: halfmoon and crown for German silver, 4 as internal production number, wheel and small star as makers mark of Martin Mayer, Mainz. Regards, Bahner