Afterwards he attended the mathematical-mechanical institute of A. Ott in Kempten (Allgäu) in the workshops of Carl Zeiss in Jena and in the workshop of Carl Bamberg in Berlin.
Danach war er am mathematisch-mechanischen Institut von A. Ott in Kempten (Allgäu), in den Werkstätten von Carl Zeiss in Jena und in der Werkstatt von Carl Bamberg in Berlin.