Chicago Insulating Company Insulators CD 109 and CD 135's

Chicago Insulating Company insulators, CD 109 teardrop pony, and CD 135 diamond groove's. The green hued one's are very difficult to locate and in my opinion are harder to find than the milky one's. Dome glass in diamond grooves are also quite uncommon, this video shows three with around an inch of dome glass.

Category:

People & Blogs

Tags:

• Insulator
• telegraph
• telephone
• electric
• historic
• Chicago
• diamond
• grooves

[HIGHVOLTAGEMONSTER]

AWESOME video! This must be the largest collection of Chicago diamond grooves in the world!

[nicoleculver]

@HIGHVOLTAGEMONSTER I think I do have the larges collection of these probably because they are my specialty.

[nicoleculver]

@Blockygraphics Yes, I have two Brooke's rams horn types one is wood and the other is the metal kind that was used on the Transcontinental Railroad. I also have a cd735 Tillotson. Those are the early telegraph type. I have newer types though they would fall in the spool or sleeve types.

[nicoleculver]

@Blockygraphics I have seen them in the wild on poles in Cheyenne, Wyo. used for secondary power lines, and on the back of house's in Denver, Colo. used as secondary drops for power. I have not been able to actually obtain them though. They can still be found in Mexico and many have been recovered from there.