Check the listing for details. 2.5" Us Army Air Force WWII Iron On Patch. Condition: Used. Listed at 11.00 USD. The product is a 2.5" iron-on patch featuring the emblem of the United States Army Air Force from World War II. This original period item is a collectible piece with a militaria theme, specifically representing the era of 1939-45. The patch originates from the United States, making it a unique and historical piece for collectors interested in military memorabilia from this significant time in history.