WIA GC/1890/7 | Clemen, Paul to Warburg, Aby 06/02/1890 | apologizes for late reply; re his notes on the Codex Vallardi and the [Gentile] Bellini... |
WIA GC/1893/16 | Maass, Ernst to Warburg, Aby 17/07/1893 | he needs [Adolphe?] Braun's permission to forward the 'Primavera' plate to Friedrich Bruckmann... |
WIA GC/1893/17 | Maass, Ernst to Warburg, Aby 27/07/1893 | F. Bruckmann [Verlagsanstalt F. Bruckmann A.-G.] informed him that he no longer needed the... |
WIA GC/1899/65 | Stoedtner, Franz to Warburg, Aby 27/07/1899 | they have photographed a large part of Warburg's photographic commission; unfortunately the E... |
WIA GC/1929/346 | Braun, Adolphe to KBW 07/01/1929 | acknowledges receipt of their postcard and return of book; he will credit them for Mark 1.60; the... |