One of the ten metal boxes in which portions of the Ringelblum Oneg Shabbat archives were hidden and buried in the Warsaw ghetto. The boxes are currently in the possession of the Jewish Historical Institute in Warsaw.

One of the ten metal boxes in which portions of the Ringelblum Oneg Shabbat archives were hidden and buried in the Warsaw ghetto. The boxes are currently in the possession of the Jewish Historical Institute in Warsaw.