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 Papua New Guinea Flag of Papua New Guinea The flag of Papua New Guinea was adopted on 1 July 1971. In the hoist, it depicts the Southern Cross; in the fly, a raggiana bird-of-paradise is silhouetted. The design was chosen through a nationwide design competition in early 1971. The winning designer was Susan Karike Huhume, who was 15 years old at the time. Red and black have long been traditional colours of many Papua New Guinean tribes. Black-white-red was the colour of the German Empire flag, which had colonised New Guinea prior to 1918. The bird-of-paradise is also found on the national coat-of-arms.