WIA GC/10968 | Warburg, Aby to Kaiserliches Postamt Hamburg 06/01/1909 | he has a subscription for the 'Münchener Allgemeine Zeitung'; informs them that he did not... |
WIA GC/11070 | Warburg, Aby to Kaiserliches Postamt Hamburg 12/07/1909 | encloses his letters to the Palasthotel in Berlin and to Dr. H. Uhde-Bernays [no longer extant... |
WIA GC/11866 | Warburg, Aby to Kaiserliches Postamt Hamburg 19/05/1913 | complains that mail was delivered late on Sunday morning |
WIA GC/8426 | Warburg, Aby to Kaiserliches Postamt Hamburg 17/02/1911 | complains that letters are delivered after 9am |