Traded at 2 Neue Schonhauser Strasse (1876), optical works, Stallschreiber-Strasse No.4 Berlin (1900) & optical & mechanical workshops, Prinzzessinnen-Strasse No.16 (1914), all Berlin, Germany
Traded at 2 Neue Schonhauser Strasse (1876), optical works, Stallschreiber-Strasse No.4 Berlin (1900) & optical & mechanical workshops, Prinzzessinnen-Strasse No.16 (1914), all Berlin, Germany