WIA GC/1911/312 | Gräff, Walter to Warburg, Aby 24/01/1911 | requests a short note for the catalogue on the school of Fra Filippo re coat-of-arms of Jacques... |
WIA GC/1911/313 | Warburg, Aby to Gräff, Walter 04/02/1911 | he could contribute to his catalogue only the note that the coat-of-arms is that of Jacques Coeur... |
WIA GC/1913/393 | Gräff, Walter to Warburg, Aby 25/02/1913 | approaches him with a research query; the Alte Pinakothek has purchased a portrait of the Sacrati... |
WIA GC/1913/394 | Warburg, Aby to Gräff, Walter 08/03/1913 | on the genealogical tree of the Sacrati family; supplies explanations; the portrait painting... |
WIA GC/1913/395 | Gräff, Walter to Warburg, Aby 11/03/1913 | thanks Warburg for his fast reply; returns the family tree of the Sacrati family; Gräff has... |