Quarantine with a disinfecting stove, have a right to navigate the Canal, in quarantine, subject only to the landing of those who were suffering from plague. Plain yellow, green, and even black flags have been used to symbolize disease in both ships and ports, with the color yellow having a longer historical precedent, as a color of marking for houses of infection, previous to its use as a maritime marking color for disease. The present flag used for the purpose is the "Lima" (L) flag, which is a mixture of yellow and black flags previously used. It is sometimes called the
Flag of Natal Flag of Natal The flag of Natal was the official flag of the South African colony of Natal from 1870 to 1910. It formed part of a system of colonial flags that were used throughout the British Empire. In a series of decisions made in 1864, 1865, and 1869, the British government decided that every colony should have a distinctive badge, to be displayed on flags at sea. The governor was to display the badge in the centre of the Union Jack when travelling by sea; vessels owned by the colony's government were to display it in the fly of