WIA GC/10069 | Maass, Ernst to Warburg, Aby 17/07/1893 | he needs [Adolphe?] Braun's permission to forward the 'Primavera' plate to Friedrich Bruckmann... |
WIA GC/10070 | 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/10229 | Warburg, Aby to Warburg, Max 12/06/1905 | Ernst Maass asked Warburg to inform Max Warburg that the printers Richter [Richtersche... |
WIA GC/10232 | Warburg, Aby to Maass, Ernst 14/07/1905 | refers to his correspondence with his brother Max regarding the publishers in liquidation; asks... |
WIA GC/10264 | Warburg, Aby to Verein für Hamburgische Geschichte 14/09/1905 | he informs the five committee members on how Director Lichtwark and Director Justus Brinckmann... |