WIA GC 1932/2426 | Saxl, Fritz to Petersen, Carl Wilhelm 22/12/1932 | |
WIA GC/1904/246 | Petersen, Carl Wilhem to Warburg, Aby 13/07/1904 | the question of the ethnological museum [Museum für Völkerkunde] has been discussed by the... |
WIA GC/1904/301 | Sillem, Edmund to Warburg, Aby 16/05/1904 | his cousin, Dr. Carl [Wilhelm] Petersen, informed him that Warburg wants to publish the... |
WIA GC/1913/309 | Öffenliche Bücherhalle Eppendorf to Warburg, Aby 1913 | appeal for funding a public library, to be situated in the communal baths, Eppendorf; the... |
WIA GC/1913/874 | Warburg, Aby to Petersen, Carl Wilhelm 13/07/1913 | instructs him to start court procedures requesting the return of photographic plates |