WIA GC/26201 | Warburg, Aby to Warburg, Felix and Warburg, Frieda 06/04/1896 | reports on his trip to the Grand Canyon; travelling companions were General [William J.] Palmer... |
WIA GC/9625 | Bell, William A. to Warburg, Aby 13/12/1895 | he is delighted that Warburg has already returned from the Cliff Dwellings; dinner invitation |
WIA GC/9642 | Visiting cards from Aby Warburg's America journey [1895/96] | a collection of 54 visiting cards (private and business), some with handwritten additions of... |
WIA GC/9646 | Fisher, Thomas J.to Warburg, Aby 27/11/1895 | he informed Dr. William A. Bell in Briarhurst, Manitou, that Warburg has accepted the invitation... |