WIA GC/1883/4
Robinow, Walter and Robinow, Adèle to Warburg, Aby and Warburg, Max 18/07/1883
greetings from Hamburg; it is cold; he has solved two chess problems and his name will be...
WIA GC/1907/261
Poeseldorfer Schachclub von 1882 to Warburg, Aby 13/08/1907
silver jubilee of the chess club; invitation to a club evening; enclosure: text of a song...