Title: Johns-Manville Transformer Insulation Advertisement
Publication Date: 1967
This advertisement states that the new General Electric QHT line of general-purpose dry-type transformers features four kinds of Johns-Manville insulation. This ad describes all four types of insulation, two of which are described as containing asbestos. These two asbestos insulations are 1200 Quinorgobord and R-4 Quinorgo.
It says, "Quinorgobord is an insulating material containing more than 93% highly purified asbestos."
Also it says, "R-4 Quinorgo is an integrally reinforced, purified asbestos electrical insulation."
1 Page advertisement dated October, 1967.
Condition: Good. Minor edge wear and light tanning.