Related to the previous picture added by our friend Francesco Bianchi, I am going to show you other two types of MV insulators used by Italian State Railroads. These are Padernos (probably manufactured by Ginori in the 1920s) and maybe they are the original MV equipment of the "Direttissima Bologna-Firenze" (High Speed Railway Bologna-Florence) opened in 1934. In the middle picture, my friend is rescuing Padernos from the pole.