"9 letters"@en . . . "WL3000/9/1/85" . . . . "This material has been digitised. Readers should book a reading room terminal to access it."@en . "Beside his Library membership the correspondence deals with three restitution related information requests by Aschenburg on: the persecution of Polish Jews, the establishment of the World Council of Polish Jews, and the 'Aryanisation' of property of a US citizen of German origin."@en . . "Correspondence with Aschenberg, Hugo"@en . . . . . .