Reuben Hecht correspondence with Ludwig Lajos Gottesman, about: New Zionist Organization (Hatzach) in Switzerland, Hecht activities in Aliyah Bet and rescue, R. Lichtheim, Elisha Katz, Theodor Fischer, Berger (German, English, French).
Also in file: List of Hatzach members in Caux, Switzerland, list of Hatzach members from Hungary, newspaper items from Hamashkif, from Gottesman "Those purporting to save Israel", "Kaddish."