1939, 13 April (issued), Kennkarte of [Israel] Ludwig Katz (the name Israel added to the forename), issued 13 April 1939, interior view. The prominent 'J' imprint indicates Jewish. Ludwig Katz was murdered in Auschwitz concentration camp on 14 September 1943., Kennekarte - Identity card, Zentralarchiv zur Erforschung der Geschichte der Juden in Deutschland, LL/129807