A staff member stamps on the special stamps "Chinese Dinosaurs" at the Chongqing Natural History Museum in Chongqing, southwest China, May 19, 2017. China Post released the special stamps "Chinese Dinosaurs" on Friday. (Xinhua/Qin Tingfu)
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A staff member stamps on the special stamps "Chinese Dinosaurs" at the Chongqing Natural History Museum in Chongqing, southwest China, May 19, 2017. China Post released the special stamps "Chinese Dinosaurs" on Friday. (Xinhua/Qin Tingfu)
