1. Shelley Coll 5_2 Reference (shelfmark): Shelley Coll 5_2 Title: The Spanish Civil War: The International Brigades (Prisoners of War) Scope & Content: International Red Cross double letter sheet on which prisoners were allowed to send messages. Collection Area: Philatelic Collections Languages: English Date Range: 1936-1939 Extent: 1 Page; 1 Item