left to right the anti fog type marked VERBANO (1962), the two RICHARD GINORI in white (large and small), and the brown RICHARD GINORI. While the brown ones are rather common in Sardegna, the white ones have been found near Rome only, and are called "anti fog" type having a long creepage distance, due the 4 shells of the same diameter. This insulators have been produced for over 20 yrs, since the '60s, by some factories (Known RICHARD GINORI, FPL, FIP and VERBANO). The complete series counts 4 different sizes, all unipart, and the smallest with 3 shells only.