About 4 3/8" diameter in unused "NOS" (New, Old Stock") condition. Probably not very old and much like many which are coming out of Pakistan these days. No shortcomings on the quality, it is embroidered in relief on a blue fabric mounted on black felt with black fabric backing. Silver and gold bullion, a slightly metallic white for the parachute and other textured threads make this really eye-catching. Reproduction of WWII era United States Army Air Force logo. Would really make a jacket into something unique. Or almost unique as presumably someone else has the same idea.