Berlin; report "the last working days in the former VEB Collective Combine Narva Berliner light bulb factory on Warschauer Stra遝". After 1945; the former Osram AG factory becomes the central manufacturer of light bulbs and others fluorescent materials in the GDR.Long-term light bulbs in the attic of the main building.Mr. Siebert; who leads the long-term experiments with lightbulbs; in his office.Berlin (Friedrichshain); February 1996.