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From Flickr: “Resolutely carry out the guiding principles of earthquake work, vigorously start a movement to survey and protect the masses” by chineseposters.net

From Flickr: “Resolutely carry out the guiding principles of earthquake work, vigorously start a movement to survey and protect the masses” by chineseposters.net

From Flickr: “Work hard to learn the basics – Climbing the peak of science and technology” by chineseposters.net

From Flickr: “The teachers and students of the revolution are battle companions in the same trench” by chineseposters.net

From Flickr: “The teachers and students of the revolution are battle companions in the same trench” by chineseposters.net

From Flickr: “The teachers and students of the revolution are battle companions in the same trench” by chineseposters.net

From Flickr: “The teachers and students of the revolution are battle companions in the same trench” by chineseposters.net

From Flickr: “The teachers and students of the revolution are battle companions in the same trench” by chineseposters.net

From Flickr: “Camil Darac, Nazlia Nakash, Lucie Nakash and Yousuf Karsh / Camil Darac, Nazlia Nakash, Lucie Nakash et Yousuf Karsh” by BiblioArchives / LibraryArchives

From Flickr: “Children and old man with a cart filled with mangels from the John Davis Farm, 1913 / Des enfants et un vieil homme près d’un chariot rempli de betteraves à la ferme de John Davis, en 1913” by BiblioArchives / LibraryArchives