WIA GC 1930/2980 | Schubring, Paul to KBW 01/09/1930 | |
WIA GC 1930/2981 | KBW to Schubring, Paul 22/12/1930 | |
WIA GC/100 | Schottmüller, Frida to Warburg, Aby 19/01/1917 | thanks him for a note; she went to Geheimrat Eduard Simon; unfortunately the cassoni panels are... |
WIA GC/10177 | Schubring, Paul to Warburg, Aby [1902] | on Nicolaus de Abrugia and an attribution |
WIA GC/10509 | Warburg, Aby to Becker, Felix 24/12/1906 | forwards two short entries on two painters, one of which is Marco del Buono; he cannot say much... |