This plaque was designed by sculptor Hans Schaefer
The Pollak von Rudin family was prominent in Vienna and Austrian Jewish society, based on the pioneering success of the elder Rudin's (Adolph, 1817-1884) business making matches and sealing wax. He discovered non-toxic red phosphorous, an essential ingredient in today's matches. The company ultimately had several factories in other countries and employed 3,000 workers. It is likely that son Alfred carried on the business.