Italian traffic sign: begin of expressway ahead. Note that the restriction shown in the right part of the sign are incorrect since the limitation of displacement of 500 cc for tricycles/quadricycles (first sign from the top) wasn't in force anymore in 1992.
Picture II 347 of Highway Code Regualtion of 1992 (with blue background); used until 1996 (when the restrictions on the right part of the sign were corrected)
DPR n. 495 del 16 dicembre 1992 Regolamento di esecuzione ed attuazione del Codice della Strada (GU n. 303 del 28 dicembre 1992)
Original:  Ministero dei Lavori Pubblici

Vectorization:  Earthshaker13