Genuine AIRFORCE Service Pin

The image shows a Genuine Issue Vintage US Air Force Enlisted Men's Service Cap Insignia Pin. Key details include:  It features the US Coat of Arms in silver-colored metal.  Enlisted men's pins are smaller than officers and have a surrounding ring.  This pin is worn on the Air Force service cap.  It is manufactured according to government specifications, with a hallmark G23.  The design is inspired by the Army, the Air Force's former parent branch.  As of 1997, only majors and above are required to wear the service cap.