Overall: 2 1/2 x 1 3/4 x 1/2 in. (6.4 x 4.4 x 1.3 cm)
Metal straight pin hinged to back of aluminum(?) pressed badge in the shape of roundel with eagle perched atop; raised relief garland and scroll motif around perimeter of roundel; stamped inscription with black paint in-fill: INVESTIGATOR / CITY OF NEW YORK / DEPARTMENT OF PUBLIC WELFARE / 370.
Due to ongoing research, information about this object is subject to change.