[Republican soldier firing riffle from desk, University City, Madrid]

[Republican soldiers eating in classroom, University City, Madrid]

[Laboratory destroyed by bombing, University City, Madrid]

[Republican soldier firing gun from desk, University City, Madrid]

[Priests singing, Lisieux, France]

[Contact sheet of images of Leon Trotsky lecturing Danish students on the history of the Russian Revolution, Copenhagen]

[Two woman holding girl's hands in the Luxembourg Garden, Paris]

[Children playing on a street, Paris]

[Man and woman at a May Day celebration, Paris]

[Dancing in the street on the evening of Bastille Day, Paris]

[Jacques Duclos, one of the leaders of the French Communist party, addressing a rally, Paris]

[Maurice Thorez (right), head of the French Communist party, with a man who had been injured in a political demonstration, Paris]

[Crowd in front of political posters the day of the election run-offs that would put into power the leftist-liberal Popular Front coalition government, Saint-Denis, France]

[Man voting in the election run-offs that would put into power the leftist-liberal Popular Front coalition government, Saint-Denis, France]

[Man voting in the election run-offs that would put into power the leftist-liberal Popular Front coalition government, Saint-Denis, France]

[Workers asleep at the Renault factory on the first night of the sit-in strike, Boulogne-Billancourt, France]

[Sit-in strikers at the Lavalette Construction Company plant with a basket of sausages sent by a sympathetic local butcher, Saint-Ouen, France]

[Employees of the Galeries Lafayette department store on the roof-top terrace during the sit-in strike, Paris]

[Miners giving the salute of the Popular Front at the Bastille Day parade, Paris]

[May Day celebration, Paris]

[Group in car celebrating the Popular Front victory in the recent national elections, Paris]

[Bastille Day parade float featuring the Soviet writer Maxim Gorky, who was revered by the international Communist movement and had died a few weeks earlier, Paris]

[Policeman with a Spanish journalist who was wrongly arrested as one of the people disrupting Emperor Haile Selassie's speech at the League of Nations, Geneva]

[Men in gas masks and protective suits during a civil-defense drill, Paris]