Insulator Help

[Iowadigger64]

Went digging yesterday in a old dump and found a couple of insulators. I have never seen one like the one on the left can anyone help with info?

 

[webby]

hi iowa, if you can let me know width and height of each pc.
and any embossing on each pc.
i can probably help

 

[Bixel]

The piece on the left is part of a 2 piece transposition style insulators. It is a CD 190, the CD 191 would be the top part of the insulator.
The piece on the right is a CD 121 toll, made by Brookfield.

 

[Bixel]

A photo of a two piece "B" CD 190/191.

 

[Iowadigger64]

Thanks Much I had never seen one before I also found another small insulator in a pit the other day I am not familiar with I need to ask about.

Thanks Again!