Here are the tragical reason why you don’t see many of J. Lübers plastic lamps or interior nowerdays. It was forbidden from 1974 to use this type of plastic in public interior designs due to a horrible fire where 142 young people were killed in a night club near Grenoble in France 1970.

http://news.bbc.co.uk/onthisday/hi/dates/stories/november/1/newsid_2537000/2537937.stm

http://history-is-made-at-night.blogspot.se/2013/05/nightclub-fires-1970-and-2013.html?m=1