An insulator collector in Italy sent me these photos of a Fidenza 6205 2 part insulator, about the same size of a Pyrex CD 320, that he has. This is unusual in that the top part is a light purple and the bottom section is light aqua. Most of these 6205s are "ice" or clear color. This one is probably a CD 381, I'll check in my GIFONA and see what CD is assigned to a 6205. I just got a photo of this one, still on the pin, before it was ckleaned up, so it is original this way.. This is very similar in size and profile to a Fidenza 2205 (Dark Green) and CA2205A (light aqua), but the top section is of a little heavier construction