Historical poster of the Holocaust from 1947 saying in Yiddish: help writing the story of the last devastation.

This is a poster calling for the documentation of testimonies from the time of the Holocaust, featuring an impressive illustration by F. Schwatz. Three figures appear in the illustration on the backdrop of a Barbed wire. At the front appear a pen, ink and an inkwell together with an open empty scroll, with only these words written on it: It was in the days of�(Hebrew).