Click Here to Continue Viewing Current Query Results or Home to Start a New Query. Description: Sieger, Triangle w/1, Circles Outside and Inside, Black Manufacturer: VEB Elektrowerkstatten, Zella Mehlis Type: Pull String Country: Germany Patent: Comment: Rounded triangle with a 1 was the quality mark of the GDR, which started from ca. 1953. Source: twillard Editors: