Italian road sign: town sign. The sign can be used to sign both the municipal boundary of a town or the build-up area; in the second case also the "no horn" and "speed limit - 50 km/h" must be used with the sign. The sign can also be used for province border, rivers, mountain passes ans geographic parallel. Picture 97a of 1959 Highway Code Regulation; fomaly abolished in 1992 but changed already in 1979 when the white background with black word was introduce for build-up area (reteing the blu-white color for all other situations) and the graphical details (rim, font) were modernized.
Decreto del presidente della Repubblica n.420 del 30 giugno 1959 Approvazione del Regolamento per l'esecuzione del Testo Unico delle norme sulla disciplina della circolazione stradale (GU n.152 del 30-6-1959 - Suppl. Ordinario n. 1520)
Original:  Ministero dei Lavori Pubblici

Vectorization:  Earthshaker13