WIA FC/1905/7/28 | Warburg, Mary to Warburg, Aby 06/06/1905 | on Frede, who had spinach for the first time and liked it; on the meeting of the... |
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/1905/140 | Federer-Köster, Anna to Warburg, Aby 02/10/1905 | thanks him for his invitations but sends apologies |
WIA GC/1929/2446 | Schrader, Hermann; Federer-Köster, Anna; Blumenthal, Paul and Classen Walther F. [re constitution... | inform the paying members of a planned change in the constitution; paragraph 2 should specify... |