WIA GC/1900/88 | Steffen, Gustaf F., Steffen, Oscara and Ehrenberg, Richard to Warburg, Aby and Warburg, Mary 22... | New Year Greetings |
WIA GC/1902/126 | Ehrenberg, Richard to Warburg, Aby 14/11/1902 | thanks him for his gift and hopes that the necessary corrections will go into a second edition... |
WIA GC/1905/631 | Warburg, Aby to Warburg, Max 12/06/1905 | Ernst Maass asked Warburg to inform Max Warburg that the printers Richter [Richtersche... |
WIA GC/1912/868 | Warburg, Aby to Members of the standing committee of the International Congress of the History of... | forwards confidentially the list of speakers and lecture titles so far received by the local... |
WIA GC/1927/976 | Reincke, Heinrich to Warburg, Aby 27/08/1927 | as [Hans] Nirrnheim is on holiday, [Heinrich] Reincke replies re query on Armada; Hamburg did not... |