WIA GC 1930/1770 | Bing, Gertrud to Kriegbaum, Friedrich 18/01/1930 | |
WIA GC 1930/1771 | Kriegbaum, Friedrich to Bing, Gertrud 29/01/1930 | |
WIA GC 1930/1772 | Kriegbaum, Friedrich to Bing, Gertrud 15/02/1930 | |
WIA GC 1930/1773 | Bing, Gertrud to Kriegbaum, Friedrich 25/02/1930 | |
WIA GC 1930/1774 | Kriegbaum, Friedrich to Jaffé, Elisabeth 01/04/1930 | |