Portrait photographer Jiang Xingen shows old portraits at home in Changsha, central China's Hunan Province, Jan. 13, 2017. A special photo exhibition is held in a time-honored photo studio named "Arc de Triomphe" recently, hoping they could be identified. All of the 300 unclaimed photos were taken by Jiang Xingen in last 60 years. (Xinhua/Li Ga)
