WIA GC 1930/740 | KBW to Doren, Alfred Jakob 29/01/1930 | |
WIA GC 1930/741 | Doren, Alfred Jakob to Saxl, Fritz 31/01/1930 | |
WIA GC 1930/742 | KBW to Doren, Alfred Jakob 04/02/1930 | |
WIA GC 1930/743 | [Bing, Gertrud] to Doren, Alfred Jakob 28/03/1930 | |
WIA GC 1930/744 | Doren, Alfred Jakob to Bing, Gertrud 01/04/1930 | |