This is another of the Fidenza 6205 two color insulators from Italy,. belongs to friend Dave, who works at the same place that I do. I have seen two of these "in person" and know of another two or three in the USA, so these are still in the "somewhat rare" category for now, 6205 denotes Size 6, two parts, 5KV rating. I alsio have one of these in clear glass. The white plaster which cements the two parts together is very evident in this photo.