"Acquisition" . "Source of acquisition is The Lavon Institute for Labour Research, Israel (RG III-37A). According to The Lavon Institute, Mr. Schwalb kept these records for many years in his private apartment in Tel Aviv before they were transferred to The Lavon Institute under a court order) The United States Holocaust Memorial Museum International Archives Project purchased and transferred the collection to the United States Holocaust Memorial Museum Archives in June 2007."@eng . .