Here is what I believe is a CD 737.6 Threadless insulator aquired from the Auburn show. It is approx. 2 3/8 inches across on the base and is approx. 2 7/8 inches tall. It also has an odd 3 piece mold style. The insulator is essentially VNM+ to Mint. It has an open bubble with the lower part being rounded and the upper is sharp. This is just a cool insulator and if there is any info on this guy I would love to hear about it. I will post a couple other pictures as well showing the cloth and pin. Happy Collecting