CD-133.2 No Embossing - MLOD - Glass Button Under Dome - Crude Blue Aqua - Measured 75 mm Wide x 105 mm Tall. It was interesting to note that there was a 12 mm high (3/8 ") cavity above the insulator threads. To me, this looked like a typical American Insulator / Oakman cavity above the threads. [id=609105124]

The following pictures shows a larger view of the dome cavity and the threads of this CD 133.2.

I will also post a picture of the glass button and internal threading [id=609105650] of this CD 133.2 No Embossing insulator.

Note: I received e-mail asking if this insulator might be manufactured by Lindborough. I am not familiar with Lindborough manufactured insulator so can't comment - what to others think about this suggestion?