You are bidding on a cool and very hard to find, circa 1890s to 1920, hard to pinpoint, gold tone metal, unknown content, enameled front with feather and NWU Boston, some kind of US Army affiliation, screw back lapel pin in the picture. 5/8 inches wide. Good shape, some loss of the enamel on the front, light wear throughout, could use a fine cleaning. Zoom in for details.

Look at the picture.