This vintage nautical signal flag, featuring the letter O in the International Code, measures 5 feet 9.5 inches by 5 feet 9.5 inches. It is made of fabric and was produced by the Valley Forge Flag Company. The flag originates from the United States and represents the US Navy during the Cold War era.

This flag is a great collectible for maritime enthusiasts and history buffs. Its vintage originality adds to its charm, making it a unique addition to any collection. Its size and quality make it suitable for display in a variety of settings.