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 Vendsyssel Flag of Vendsyssel The proposed flag of Vendsyssel in Denmark was introduced by the mayor of Hjørring in 1976, and is used to some extent. The flag is named Vendelbrog (with reference to the Danish flag Dannebrog interpreted as The Danish cloth). It is a Nordic Cross flag in blue, orange and green. The blue colour symbolizes the sea. The orange/red colour is symbol of the sun and the beaches of Vendsyssel, and the green is for the lush nature. By tradition, only people born in Vendsyssel can use the flag. The flag is not officially recognised, but it used