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 Bhutan located parallel to the bottom edge and facing the fly. However, the CBS document does not illustrate the early versions of the flag and its description of the 1949 flag is not entirely consistent with the photos surviving from 1949. It describes the flag as "square", while the proportions of the flag in the photographs appear closer to 4:5. The document describes the dragon as "facing the fly end", while the dragon visible in the photos faces the hoist. The dragon is described as "parallel to the fly" (meaning, according to a diagram in the document, parallel to the length