ca. 1941

“Registration of Jews” [Poland] [Unconfirmed]
 
Commentary from other sources:
1) “Poles caught selling food to Jews in the Warsaw Ghetto are automatically sentenced to three years of hard labor. The daily bread ration for Jews in the Warsaw Ghetto is reduced to three ounces a day.”
The Holocaust: Timeline of Jewish Persecution (1932 – 1945);” jewishvirtuallibrary.org