Anyone know who made this insulator and what CDit is for sure. I think it's a CD 134 and I would guess it is a Pennyquick Style. Am I right? Feel free to correct me if I'm wrong. If it is a CD 134 I never had one with the dome this one has. Awjile back I was checking out someones store at eBay and the person wanted big bucks for one like this. I thought that person was out of his mind or they were not that common. Which of my thought were the closest?