WIA FC/1889/14/5 | Warburg, Aby to Warburg, Moritz and Warburg, Charlotte 21/10/1889 | instead of Mesuse he has just nailed his visiting card to the door post; informs them of his new... |
WIA FC/1896/14/2 | Warburg, Olga to Warburg, Aby 24/01/1896 | she wanted to write on 24/01, but had not time to write the letter; continues on 05/02/1896... |
WIA GC/1897/42 | Lenel, Otto to Warburg, Aby 17/07/1897 | congratulates him, also in the name of his wife, on his engagement; is it true that his bride is... |
WIA GC/1906/421 | Warburg, Aby to Lenel, [Otto?] 28/09/1906 | informs him of his decision not to accept the post in Breslau |
WIA GC/1908/323 | Lenel, Otto to Warburg, Aby 28/09/1908 | recommendation for [Richard] Thoma and [Helene] Thoma who are moving from Freiburg to Hamburg... |