WIA FC/1921/20/25 | Warburg, Max to Warburg, Aby 18/08/1921 | informs Aby about Marc Rosenberg's forthcoming 70th birthday on 20 August |
WIA GC 1930/2809 | Rosenberg, Marc to KBW [1930] | |
WIA GC/1894/13 | Rosenberg, Marc to Warburg, Aby 06/01/1894 | he has just read [Gustav] Pauli's review of Warburg's [PhD] and does not like Pauli's... |
WIA GC/1899/59 | Rosenberg, Marc to Warburg, Aby 04/03/1899 | belated congratulations on the birth of the daughter, discusses Heinrich Wölfflin's 'Renaissance' |
WIA GC/1899/60 | Rosenberg, Marc to Warburg, Aby 11/06/1899 | his sister Lilly helped him greatly in Rome; [does not mentioned who died] |