PLACEHOLDER U.S. Army Uniform. [c] Collar button. Material: metal. Size: 1" diameter x 3/8" D. Description: bronze - disk with raised lettering: "U.S." - centered back threaded prong with nut - two prongs also project from back of pin to be worn on uniform blouse buttonhole. (d) Collar pin. Same as [c] except for concave nut and one prong only.
