[Bombers preparing to set off a bomb on university grounds, Madrid]

[Republican soldier looking through peephole, University City, Madrid]

[Republican soldier holding rifle, University City, Madrid]

[Republican soldiers playing chess in the trenches, University City, Madrid]

[Wounded Republican soldiers carried by comrades, University City, Madrid]

[People walking in front of the University, Tiflis, Georgian Soviet Socialist Republic]

[People walking in front of the University, Tiflis, Georgian Soviet Socialist Republic]

[Three Republicans standing in the trenches, University City, Madrid]