Insulator on right is a W.Brookfield with no SN on top. Has thick skirt wall and shape of dome is different the insulator on left. It measures 3 1/4 inches across the base and is 3 3/4 inches high.

Dark insulator on left has Brookfield on front skirt on front skirt and SN10 at the top of dome. It measures 3 1/8 across base and is also only 3 3/4 inches high.

I know the left insulator is a CD 162. Not sure about insulator on the right. It at least has the base measurement right according to price guide. No other measurements I mentioned above match PG.

I've been in the hobby for a very long time know and I'm pretty sure I've run across the same problem early on so this is kinda embarassing to have to ask. Sure wish there was a more accurate way to ID these just using my many prices guides.

Update:

As of now I'm only had two responses to my questions. They both agree the insulator on left is a CD 162 and the insulator on the right is a CD 162.3. Only Star 162.3 seem to measure the full four inches in hieght that the PG indicates.