This small insulator looks like Paderno style, but is different. It has two shells with one petticoat, it is very light compared to similar dimension Paderno insulators and it is made in two pieces glazewelded. It is very well made. I found it along the short line that connected the city of Belluno to the first electric power plant built in 1905 - 1908. The building of the power plant still exists, machines were dismantled in the 1960's, steel towers were removed after second world war.