Metal Polishers Buffers Platers & Helpers International Union 20 Years Pin

Found this vintage 20 year service pin from the Metal Polishers, Buffers, Platers & Helpers International Union. It's a cool little piece of labor history with the blue and white enamel still looking pretty good. Perfect for anyone who collects union memorabilia or vintage lapel pins. Has that classic shield shape and shows some honest age but nothing crazy.