Private (and old) line seen today at the Lavagnina lake (they feed an hydro-electric plant): the three wires are still in use @ 380 V: for this line some insulators have been used: 3 Weitschirms, two 1/1920 and even a telephone FT 120 (first from right on the upper crossarm). The insulators of the 4 insulators crossarms (small CERAMICA LIGURE deltas and type 2/1920) were used for another, and unknown to me, line. All insulators date 1930s