WIA GC 1931/797 | Geffcken, Johannes to [Saxl, Fritz] 09/05/1931 | |
WIA GC/1905/179 | Geffcken, Johannes to Warburg, Aby 26/02/1905 | asks Warburg for an appointment |
WIA GC/1905/180 | Geffcken, Johannes to Warburg, Aby 01/03/1905 | confirms the appointment; is keen to explain a misunderstanding |
WIA GC/1905/181 | Warburg, Aby to Geffcken, Johannes 21/03/1905 | [Max] Brütt informed him that Warburg's contribution to the congress will be published and paid... |
WIA GC/1905/328 | Lichtwark, Alfred to Warburg, Aby 25/02/1905 | thanks for his letter; he does not know the financial; arrangements [regarding subsidies to print... |