I can see from where you're coming, Uli. I doubt that there was a country in Europe that didn't produce a Zögling type glider in the twenties. I don't know if DFS produced a 'motorzögling' glider but, it it did, this is not it. This originated in a different European country and was the handiwork of someone who shared a name with a better known, and more prolific, constructor in a yet another European country!