1900-1939) was an Argentine Jewish businessman and pimp, who headed the criminal organization Ashkenazum, an offshoot of the larger Zwi Migdal, in the first half of the 20th century.
Rubinstein arrived in Buenos Aires from Odessa in the year 1900, and quickly became the owner of a condom factory.
At some point he became involved with the Zwi Migdal, which trafficked thousands of Jewish women from shtetls in Eastern Europe across the world for sex slavery.
[4] The Ashkenazum was a financial success, and like the Zwi Migdal, had a plot of land and a cemetery of its own on the outskirts of Buenos Aires.
[5] The sex trafficking trade was dismantled after a former member betrayed it to authorities, leading to the conviction and deportation of 108 pimps to Uruguay.