WIA GC/1918/274
Hagedorn, Anton Bernhard Carl to Warburg, Aby 10/07/1918
information on Dr. Meyer Abraham, later styled Abramson or Abrahamson; he was the son of Abraham...
WIA GC/1924/632
Kohn-Speyer, Paul to Warburg, Aby 02/07/1924
thanks him for letter of 28/06/1924; he will try to find the pictures requested by Warburg...