WIA GC/120 | Warburg, Aby to Stuck, Wilhelm 27/07/1917 | acknowledges receipt of letter of 24/07 and cable of 27/07/1917; accepts the authorization, given... |
WIA GC/14617 | Doren, Alfred and Doren, Anna to Warburg, Aby 27/08/1924 | he is very happy that Warburg is back in his house; supplies details of Albert Köster's estate... |
WIA GC/14650 | Warburg, Aby to Doren, Alfred 25/08/1924 | he arrived safely back in Hamburg; requests information on the Albert Köster estate; he cannot... |
WIA GC/14651 | Warburg, Aby to Doren, Alfred 29/08/1924 | thanks him for information re Albert Köster estate; it is too expensive; on the date of the Doren... |
WIA GC/18248 | Warburg, Aby to Werner, Theodor Wilhelm 13/07/1926 | Albert Köster sent him a brochure advertising Werner's edition of Steffani's opera 'Heinrich der... |