No idea on the origins of this piece but Morocco seems to pop up a lot as a low-cost location of decorating companies, many French owned and back to 1900 at least. Equally, a lot of German companies owned glassworks in Czechoslovakia until WW2 a side effect of which that as the Germans got kicked out at the end of the war a lot of documentation was destroyed.
With blanks and other aspects of technology, such as nickel silver, being exported that does only leave a knowledge of the end products as often the only means of identifying where the finished product was produced. This for Europe is certainly one of Ivo's most impressive strengths. Decorating companies always have sourced based on cost and it is possible that a German company commissioned these and tagged as German made. Similar things are reported going on in Murano too. So the glass could come from Czechoslovakia, or elsewhere, the wire could come from Germany. Using such a tag makes a lot of sense on a metal covered product, paper labels would be very temporary. Metal can decay very quickly if not stored in ideal conditions.
I think, mostly, we are aware of and respect your knowledge g-m-a. It often happens here that brief answers can often raise hackles. From my perspective, I cannot afford the time to always give a detailed answer but as Ivo did, I do follow up with more detail if the brief response causes puzzlement.