WIA FC/1902/10/1 | Warburg, Abraham S. to Warburg, Aby 20/10/1902 | supplies address of Mrs. Adolph Warburg in Florence, Via della Robbia 66; Lilly Kaulla, née... |
WIA GC/1912/1117 | Waetzoldt, Wilhelm to Warburg, Aby 04/10/1912 | H.A. Schmidt will be in Rome and asked Waetzoldt to recommend him to Warburg; mentions names of... |
WIA GC/1912/901 | Warburg, Aby to Sachse, Paul Friedrich Carl 03/12/1912 | comments on the painting by [Ulrich] Hübner which does not seem to be a suitable painting; it... |