I sure appreciate everyone's help with the 162.3 identification. My son and I retrieved this insulator from storage and I noticed it looks so very similar to the 162.3 only about 10+% smaller and it has no inner skirt. Years ago when I had placed it in storage I labelled it CD 133. However, it is only 3.75 inches tall. The guide says the 133 is 4 inches tall.

Maybe it is 134. I just love these fat....heavy-glassed bulky insulators. They feel crude and antiquish!