Hello , The eagle with the spqr its probably Italian but not of the Police of the Publicca Sicurezza until 1946 .the PS badge have a Royal Crown , and the coat of arms of the House of Savoy on the breast of the eagle .After 1943 Mussolini created The Republic of Salo the Police was renamed Corpo di polizia Republicano but the badge is not that of the photo. After 1946 the PS was renamed Polizia de Stato and the badge changed ,the Royal crown on the head of the eagle was replaced by a mural crown and the coat of arms of the Savoys by a red shiel with the letters R I