WIA GC/1902/236 | Köster, Anna to Warburg, Aby 19/06/1902 | on an exhibition, prepared by architect Johannes Oltmanns; problems with hanging |
WIA GC/1902/330 | Oltmanns, Johannes to Warburg, Aby 10/06/1902 | on an exhibition in the Volksheim; informs him of date and time for the hanging of the new... |
WIA GC/1902/331 | Oltmanns, Johannes to Warburg, Aby 17/06/1902 | wants to talk with Warburg on the Riviera pictures for the exhibition |
WIA GC/1902/332 | Oltmanns, Johannes to Warburg, Aby 25/08/1902 | confirms an appointment to meet Warburg |
WIA GC/1902/373 | Schomerus, Friedrich to Warburg, Aby 06/08/1902 | on an exhibition of portraits; Warburg is invited to give the opening lecture; Johannes Oltmanns... |