WIA GC 1930/3586 | Saxl, Fritz to Warburg, Fritz M. 01/02/1930 | |
WIA GC 1930/3588 | Warburg, Fritz M. to Bing, Gertrud 12/06/1930 | |
WIA GC 1930/3589 | Bing, Gertrud to Warburg, Fritz M. 25/08/1930 | |
WIA GC 1930/3590 | Warburg, Fritz M. to Bing, Gertrud 27/08/1930 | |
WIA GC 1930/3591 | Bing, Gertrud to Warburg, Fritz M. 28/08/1930 | |