WIA FC/1891/9/51 | Warburg, Aby to Warburg, Charlotte 01/12/1891 | acknowledges receipt of her letter which he had requested in his cable; complains that his family... |
WIA GC/1892/10 | Collischonn, Paul to Warburg, Aby 20/06/1892 | their two letters must have crossed; he passed his teacher's exam; is Warburg travelling to... |
WIA GC/1892/11 | Collischonn, Paul to Warburg, Aby 31/12/1892 | thanks him for a copy of his thesis; New Year greetings and wishes him a tough military life to... |
WIA GC/1892/7 | Collischonn, Paul to Warburg, Aby 15/02/1892 | thanks him for his good services in the last few days; he handed in his research; requests... |
WIA GC/1892/8 | Collischonn, Paul to Warburg, Aby 19/02/1892 | thanks him for his cable; thanks Warburg and before him Walter Lenel for his splendid services to... |