3057774 Naval battle scene at the Dagu or Taku Forts, Second Opium War, 1859 (w/c on paper) by Chinese School (19th century); Private Collection; (add.info.: The Taku Forts or Dagu Forts (literally \'Taku batteries\'), also called the Peiho Forts are forts located by the Hai River (Peiho River) estuary, in Tanggu District, Tianjin municipality, in northeastern China. They are located 60 km southeast of the Tianjin urban center.); Photo 穢 Christie\'s Images.