This monumental limestone-faced building is in the severe classical style favored for public buildings in the early years of the Great Depression. Shallow fluted piers elaborate the facade, along with medallions containing bas-reliefs of eagles, and the windows are metal-framed. The rectangular lobby retains much of its original finishes, including banks of metal mailboxes. Here a local architect collaborated with the federal architect, the result of successful lobbying by the American Institute of Architects (AIA) during the Great Depression to give employment to local practitioners.