WIA GC 1930/141 | [Bing, Gertrud] to Berenson, Bernard 04/08/1930 | |
WIA GC 1930/142 | Berenson, Bernard to Bing, Gertrud 09/08/1930 | |
WIA GC 1930/143 | [Bing, Gertrud] to Berenson, Bernard 12/11/1930 | |
WIA GC 1930/144 | Saxl, Fritz to Berenson, Bernard 13/11/1930 | |
WIA GC 1930/145 | Berenson, Bernard to [Saxl, Fritz] 25/11/1930 | |