The details on this insulator are as follows:

CD-162.5 B on the skirt - P.L.W. on the top of the dome - 3 piece mold - Deep Teal Blue Green - Measures 83 mm wide x 104 mm tall.

This picture of shows the CD 162.5 dome with the P.L.W.

Note: I have never found a CD 162.5 P.L.W. in Pennsylvania although I've found a large number of CD 162.5 P.R.R. in shades of aqua to dark aqua blue. This is the only CD 162.5 P.L.W. that I've ever had in my collection and I consider it fairly uncommon to rare.