WIA GC/1913/482 | Heise, Carl Georg to Warburg, Aby 17/07/1913 | thanks him for his letter; he is looking forward meeting him together with his friend Mardersteig... |
WIA GC/1913/727 | Mardersteig, Hans to Warburg, Aby 18/07/1913 | requests career advice |
WIA GC/1913/728 | Mardersteig, Hans to Warburg, Aby 30/12/1913 | reports on his studies in Jena; is impressed by woodcuts by [Karl] Thylmann |
WIA GC/1914/391 | Heise, Carl Georg to Warburg, Aby 20/05/1914 | he was very taken with the seminar on Michelangelo's Cupido, which [Albert?] Elkan gave; on his... |
WIA GC/1914/570 | Mardersteig, Hans to Warburg, Aby 11/05/1914 | requests an appointment to get Warburg's advice on his professional career |