WIA GC/1906/606 | Schubert-Soldern, Fortunat von to Warburg, Aby 22/10/1906 | apologizes for the delay in forwarding Josef Strzygowski's draft |
WIA GC/1907/447 | Koetschau, Karl to Warburg, Aby 25/10/1907 | forwards papers from [Josef] Strzygowski and [Fortunat von] Schubert [-Soldern] listing possible... |
WIA GC/1907/448 | Koetschau, Karl to Warburg, Aby 03/11/1907 | forwards F. Schubert-Soldern's draft for a classification system; it will be sent to O. Wulff and... |
WIA GC/1907/449 | Warburg, Aby to Koetschau, Karl 04/11/1907 | informs him of the transfer of money; on the printing of the congress proceedings; the... |
WIA GC/1907/655 | Schubert-Soldern, Fortunat von to Warburg, Aby 19/10/1907 | forwards his and Strzygowski's draft topics for art historical congresses; requests Warburg to... |