My recent California insulator collection purchased yielded two of these unusual blue aqua CD 166[020]'s, which is an unlisted color for this CD and is the second insulator from the left. For color comparison, I have displayed a blue CD 166 on the left, and a blue aqua CD 162 and CD 160 on the center right and right side. On the CD 166 there is a nick on the base, one on the rear wire ridge and one on the skirt in the front.

Offered in trade for a California that can be added to my collection. See want list [id=549405707]