WIA GC/19848 | Bodmer, Heinrich to Warburg, Aby 29/09/1928 | forwards museum permits for Warburg and Bing to Bologna |
WIA GC/20091 | Warburg, Aby to Eckardt, Felix von 03/10/1928 | acknowledges receipt of the article on the Planetarium, published on 28/09/1928; requests that... |
WIA GC/20208 | Warburg, Aby to Gartzke, W. 05/10/1928 | regrets but cannot support his charitable work |
WIA GC/20234 | Warburg, Aby to Wissler, Clark 18/10/1928 | he cannot forward his lecture text as he will not take part in the Congress of Americanists; only... |
WIA GC/20583 | Warburg, Aby to Köster 15/10/1928 | is very pleased that he can advise her in matters of her son's career; on his work and travel in... |