[Republican soldier crouching by a table, University City, Madrid]

[Elderly woman walking past group of soldiers at the barricades, Madrid]

[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 outside the Porta de Toledo, Madrid]

[Painting standing in the ruins of a bombed building, Madrid]

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