Siemens Table telephone, 1920s. Lacquered metal, hard rubber (ebonite), Siemens & Halske, Berlin, Collection: German Plastics Museum, Oberhausen. LVR Industrial Museum, Photographer: Jürgen Hoffmann
Siemens Table telephone, 1920s. Lacquered metal, hard rubber (ebonite), Siemens & Halske, Berlin, Collection: German Plastics Museum, Oberhausen. LVR Industrial Museum, Photographer: Jürgen Hoffmann