WIA GC/10561 | Warburg, Aby to Posse, Hans 18/02/1907 | requests information from Posse as Heinrich Brockhaus's assistant on the activities of the... |
WIA GC/10566 | Warburg, Aby to Posse Hans 23/02/1907 | Posse misunderstood Warburg's request for information on the work in the Institute in Florence... |
WIA GC/12373 | Warburg, Aby to Posse, Hans 23/12/1916 | on 'patriotic' art; wants to know how it came that a portrait painting of Hindenburg by Hugo... |
WIA GC/17603 | Heydenreich, Ludwig Heinrich to Bing. Gertrud 16/09/1926 | he has cleaned the painting and had it photographed; each exposure took 40 minutes; the director... |
WIA GC/20059 | Saxl, Fritz to W. E. Duits 19/03/1928 | acknowledges with thanks the photograph of the Manoah sketch; Saxl has written about it to H... |