In ghetto, together with Konrad, he had a factory of beds at Grzybowska Street.
The owner of a Polish factory in the ghetto, which hired Polish workers.
owner of the metal factory in the ghetto, he did not move his company to the "Aryan side".
Golc, Tadeusz testimony 301-6046
Ernest, Stefan Pam. „Trzeci Front. O wojnie wielkich Niemiec z Zydami Warszawy 1939-1943” (On the War of Great Germany with the Jews 1939 – 1943)