Cape Verde Country Flag Size:4' x 6' simple description is provided which simple description is provided which more fully describes the condition to which the clause should apply British Admiralty Nautical Chart 751: Egg Island to a West Ironbound Island is a standard nautical chart This flag is used to identify the flag state a vessel is sailing under and to communicate with other vessels under the provisions of the International Code of Signals These codes are published by the International Maritime Organization (IMO) as an ongoing effort to reinforce maritime safety procedures and communications to the international maritime community