since 1961, Potsdam-Museum; previously: 1945-1960 Walter Neuling, Salzwedel, and Otto Neuling, Borkheide; previously: approximately 1940-1945 Library of the German Foreign Research Institute (DAWI) to Berlin; previously: unknown [possibly Department of Oriental Languages, Friedrich-Wilhelms-Universität Berlin]; previously: Ardeshir M. Vacha, Berlin and Bombay
