Striking building workers raise their fists in salute during a rally in the Bois de Vincennes, Paris, 13th June 1936. (Photo by Keystone/Hulton Archive/Getty Images)
Striking building workers raise their fists in salute during a rally in the Bois de Vincennes, Paris, 13th June 1936. (Photo by Keystone/Hulton Archive/Getty Images)