Author / Collaborator : Hatvany, Lajos

• [Untitled] Mann, Erika ; Hatvany, Lajos 1 Br.-Kopie o.O., [7.7.]

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie New York, 05/01/1941

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie Brentwood/Los Angeles, 12/08/1940

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie New York, 15/02/1940

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie Barcelona, 14/07/1938

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Kt.-Kopie o.O., 15/09/1938

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Kt.-Kopie (Nur hs.Gruá) Barcelona, 14/07/1938

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Kt.-Kopie Perpignan, 23/06/1938

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie Küsnacht/Zürich, 04/06/1938

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie Küsnacht/Zürich, 16/05/1938

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie Küsnacht/Zürich, 15/05/1938

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie New York, 29/10/1937

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie Küsnacht bei Zürich, 18/08/1937

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie Sanary, 12/08/1937

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie Budapest, 28/05/1937

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Telegr.-Kopie Wien, 13/05/1937

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie Prag, 08/05/1937

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie Küsnacht/Zürich, 10/04/1937

• [Untitled] Mann, Klaus ; Hatvany, Lajos 1 Br.-Kopie Küsnacht/Zürich, 09/03/1937

• [Untitled] Mann, Klaus ; Hatvany, Lajos ; Hatvany, Loli 1 Br.-Kopie, 1 Kt.-Kopie, 1 Vkt. m. hs. Kurztext in Kopie Budapest u. o.O.