WIA GC/1903/261 | Sieveking, Hermann Georg to Warburg, Aby 02/06/1903 | supplies a drawing of a wooden crate for the transport of bottles [possibly in connection with... |
WIA GC/1911/23 | Warburg, Aby to Ballin, Albert 12/08/1911 | forwards the papers Peter Dorweiler sent to Warburg so that Ballin can inform the Emperor... |
WIA GC/1913/1008 | Warburg, Aby to Schädel, Bernhard 20/12/1913 | supplies names of experts and suggestions for lecture topics; Carl Mönckeberg on Hamburg... |
WIA GC/1913/1071 | Warburg, Aby to Sieveking, Hermann Georg 24/10/1913 | as the Patriotische Gesellschaft wants to ask L. Klages to give lectures, he was asked to submit... |
WIA GC/1913/617 | Warburg, Aby to Klages, Ludwig 20/10/1913 | supplies address of Dr. [Hermann Georg] Sieveking of the Patriotische Gesellschaft |