WIA FC/1903/13/6 | Warburg, Max to Warburg, Aby 04/04/1903 | refers to Warburg's comment on the 'beauty' of the signatures of the two new 'Prokuristen'; he is... |
WIA FC/1921/1/46 | Warburg, Aby to Warburg, Mary 28/01/1921 | acknowledges receipt of her letter of 24/01/1921, late arrival; all her parcels arrive damaged... |
WIA GC 1931/329 | Burdach, Konrad to Saxl, Fritz 03/02/1931 | |
WIA GC 1931/330 | Saxl, Fritz to Burdach, Konrad 12/02/1931 | |
WIA GC 1931/331 | Burdach, Konrad to Saxl, Fritz 18/02/1931 | |