This is a museum quality reproduction of a Luxenberg US Army Air Corp officer collar insignia. Morry Luxenberg owned and operated a high end tailor shop in New York and London during the war. He was noted for both his uniforms and insignia. The collars come in a set of two and are 1 1/8 inches wide. We have these available in many different finishes, the one show here are in sterling silver with clutch backs.