Negative (photographic) Harvard University Library General: Images acquired from the income of The Rudolph and Sara Wyner Judaica Book Fund in the Harvard College Library (Fund 560357). Copyright: Central Zionist Archives, cza@wzo.org.il Repository: Judaica Division, Widener Library JPCDPZA39398, Record Identifier: olvwork610144
Image available at: http://commons.wikimedia.org/wiki/File:Portrait_of_Helmar_Lerski.jpg
