Nautical Delta Letter ?D? Signal Maritime Flag - 71?L x 46 1/2?W - good condition! ***Please visit our store for more vintage newer nautical Maritime flags*** Approximate Measurements as seen in pics! Please see all pics! No holes or tears. Black marker D is written on the flag. Some ?staining/water spots are present that could be cleaned with appropriate cleaners if desired. We have not attempted to clean this flag. Shadows glares are seen in pics from lighting. The nautical flag Delta (D) signifies "Keep clear of me; I am maneuvering with difficulty". It's an international signal flag used by vessels to communicate their inability to maneuver easily and to warn other ships to maintain a safe distance. This flag is part of the International Code of Signals, a system used for maritime communication. Thanks for looking and have a great day!