[Man and woman working on airplane frame, Spain]

[Republican soldiers on a battlefield, Battle of Brunete, Spain]

[Soldier at window talking and smiling to a woman, Spain]

[Funeral of General Pavol Lukács, Valencia, Spain]

[Four Republican soldiers, Córdoba front, Spain]

[Tank, Navacerrada Pass, Segovia front, Spain]

[Workers making guns in a munitions factory, Spain]

[Men unloading truck, Jarama front, Spain]