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/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... |