WIA GC/1892/27 | Laban, Ferdinand to Warburg, Aby 31/12/1892 | thanks him very much for a copy of his thesis |
WIA GC/1902/153 | Friedländer, Max J. to Warburg, Aby 10/06/1902 | he was sorry but he did not have the time to meet Warburg in Hamburg; he stayed with Richard... |
WIA GC/1902/158 | Friedländer, Max J. to Warburg, Aby 03/09/1902 | acknowledges receipt of photograph; he does not think that Hugo van der Goes was the painter... |
WIA GC/1902/248 | Laban, Ferdinand to Warburg, Aby 09/02/1902 | he inquires about the essay on Flemish and Florentine art; Warburg should contact him |
WIA GC/1902/249 | Laban, Ferdinand to Warburg, Aby 05/06/1902 | urges him to send the manuscript, photographs have already been ordered |