Vintage United States Air Force 1100th Airbase Group Washington DC Subdued Uniform Patch Circa 1999 - The Vintage US Air Force 1100th Airbase Group Washington DC Subdued Patch Circa 1999 is a collectible patch representing the Air Force branch of the military. Made in the United States, this subdued patch features a design that aligns with the theme of militaria. Perfect for collectors or those interested in military history, this patch from the 1990s captures a piece of Air Force history and heritage.