Italian road sign: urban indication signs. The picture shows the position of the sign according the direction of the arrow: signs with straight arrows are put on top, signs with left arrows are put in the middle and signs with right arrows are put at the bottom. Note as the order of the color is wrong (as explicitely pointed out by the circular itself). Picture 182 of ministerial circular n. 400 of 1979.
Circolare Ministero Lavori Pubblici n. 400 del 9/2/1979 "Segnaletica urbana di indicazione" - Capitolo
Original:  Ministero dei Lavori Pubblici

Vectorization:  Earthshaker13