A pair of World War II Polish metal breast badges of Warsaw ghetto police. Hexagonal badges with Magen David, inscriptions Ordnungsdienst Sluzba Porzadkowe, JRW RZW. The bigger badge has leather backing. The smaller badge is marked L. Olszewski Grawer Warszawa Stare Miasto ul. Piwna 15 on the backside. The Warsaw Ghetto was the largest of the Nazi ghettos during World War II and the Holocaust. It was established in November 1940 and demolished in May 1943. Second World War Historical Collectables And Memorabilia, Holocaust, Badges And Medals, Exonumia.