International Code of Signals – Number Three We have a full range of flags for use in maritime settings from ensigns through to icos (international code of signals) flags. Many are in stock and in view of the need for international courtesy flags at short notice we can usually respond within 48 hours (often sooner). So you can have absolute confidence when you choose aa flags. Our skilled machinists have been making flags for over 30 years, their attention to detail makes these products the most prestigious on the market. Using elements of digital technology, embroidery and skill, we produce some of the most outstanding products in our field. These flags are traditionally manufactured with a rope and toggle for flying, but let us know and we can attach a sleeve or eyelets at no extra cost.