WIA FC/1893/5/2 | Warburg, Aby to Warburg, Charlotte 06/01/1893 | thanks her for bottles of wine; it is very cold in Karlsruhe; he had a letter from Henry Thode... |
WIA FC/1895/15/6 | Warburg, Olga to Warburg, Aby 23/05/1895 | copies a letter by [Prof.] Dr. [Ludwig] Geiger [21/05/1895, extant in GC] to Warburg in which... |
WIA FC/1895/15/7 | Warburg, Olga to Warburg, Aby 24/05/1895 and draft Warburg, Aby to Ludwig Geiger [1895] | Olga acknowledges receipt of his card; urges him to return to Hamburg; describes the rooms in the... |
WIA FC/1898/10/7 | Warburg, Fritz to Warburg, Aby 28/10/1898 | he has moved to Berlin one week ago, his apartment is nearly opposite to Warburg's old apartment... |
WIA FC/1912/11/9 | Warburg, Max to Warburg, Aby 26/03/1912 | draws his attention to a book by [Ludwig] Geiger on Jacob Burckhardt in which he frequently... |