The South African Republic, which existed from 1852 to 1877, 1881 to 1902, and 1914 to 1915, used two flags: the so-called 'Vierkleur' from 1857 to 1874, and again from 1875 to 1877 and 1881 to 1902, and the so-called 'Burgers Flag' from 1874 to 1875. Wikipedia