WIA FC/1897/27/110 | Warburg, Mary to Warburg, Charlotte 27/12/1897 | apologizes for delay in writing; is pleased that her watercolour arrived well; her brother... |
WIA FC/1929/10/32 | Warburg, Mary to Warburg, Frede 20/09/1929 | it is a pity that Warburg does not want to stay in Heligoland longer, but the weather seems to be... |
WIA FC/1929/7/122 | Warburg, Mary to Warburg, Aby 20/09/1929 | had thought that Warburg and Bing would have stayed longer in Heligoland; Mary will stay on... |
WIA FC/1929/7/123 | Warburg, Mary to Warburg, Aby 24/09/1929 | she liked the letter by [C. A.] Gempf very much, he has understood the function of the library... |
WIA GC/1927/1164 | Steffen, Mona-Lisa to Warburg, Aby 19/01/1927 | thanks him for a copy of the linocut IDEA VINCIT which Warburg sent to her father; she likes it... |