WIA GC 1931/2467
Proctor, Grete to Bing, Gertrud 08/06/1931
thanks for her letter in which Bing pointed to the fact that there are a number of mistakes in...
WIA GC 1931/2583
Ruben, Paul to Saxl, Fritz 19/01/1931
WIA GC 1932/3323
Wulzinger, Karl to Ruben, Paul 30/11/1932
WIA GC 1933/2482
Ruben, Paul to Saxl, Fritz 17/09/1933
WIA GC 1933/2483
Ruben, Paul to Saxl, Fritz 23/09/1933