. . "Documentation, including reports and testimonies sent to Nathan Schwalb by Hechalutz movement members in German-occupied countries, a list of aliya training places in the East Upper Silesia area, a postcard sent by Israel Kasztner to Nathan Schwalb regard"@eng . "Documentation, including reports and testimonies sent to Nathan Schwalb by Hechalutz movement members in German-occupied countries, a list of aliya training places in the East Upper Silesia area, a postcard sent by Israel Kasztner to Nathan Schwalb regard"@eng . .