WIA GC/11023 | Warburg, Aby to Krüss, Andreas [after 07/04/1909] | acknowledges receipt of invoice; wants to know how much will be deducted if he pays immediately |
WIA GC/14543 | Joachim, Hermann to Warburg, Aby 06/03/1917 | he was able to change the title of Warburg's lecture on the invitation cards as requested; hopes... |
WIA GC/15407 | Saxl, Fritz to Samson, Richard 18/07/1924 | complaint against Andreas Krüss who has supplied the slide projector in lecture hall C; the slide... |
WIA GC/15467 | Saxl, Fritz to Salomon, Richard 18/07/1924 | forwards a letter of complaint against Andreas Krüss [extant] |
WIA GC/16238 | Saxl, Fritz to Krüss, Andreas 29/07/1925 | the slides, made by his firm, were not as good as slides made by another company so that he was... |