WIA GC/1900/69
Robinow, Ida to Warburg, Aby 24/08/1900
thanks him for a photograph and urges him to write to her 'on the effect of the letter in question'
WIA GC/1901/66
Robinow, Ida to Warburg, Aby 12/11/1901
reminds him of a dinner engagement with her family
WIA GC/1901/67
Robinow, Ida to Warburg, Aby 15/11/1901
she is disappointed that he cannot keep the dinner appointment