GUEST badge / medal / pin back from the USA United Steelworkers of America16th Constitutional Convention, Las Vegas Nevada, Sept. 18-22, 1972 made by Bastian Bros. Co. of Rochester, NY. Total length is 4.75" long. White silky ribbon with silver lettering "United Steelworkers of America" between 1.75" x .5" metal top that reads GUEST & medal on the bottom with USA worker logo & convention info. on front & MIB PIU (Metal Polishers & Buffers Union and Platers International Union) on back.
LIKE NEW, still on the original stiff paper backer & in plastic all these years.