Love prismic numbers.......

[Brutalfly]

I found this yesterday. I really enjoy finding prismic numbers and the swan neck 2. I had to share. It is also a cd133. I didn't realize it was smaller.

 

[Harry Pristis]

For those of us who don't collect insulators, what is a "prismic number"? What distinguishes a "swan neck 2" from another "2"?

 

[Brutalfly]

The 2 that I posted is a swan neck example.
This is am example of a prismic 2. The prismic writing was from 1895-1901.

The insulator I shared is a transition style from 1893-1895.

The following is more common and non prismic it is called large stamped old style from 1902-1919

Then this is stamped new style from 1920s-1939

*******Note: I did borrow these from:

Hemingray.info - Hemingray Insulator Embossing Styles

Discover more about Hemingray glass insulators! Home of the Hemingray Insulator Database.

www.hemingray.info

 

[Harry Pristis]

Thanks. It's "prismatic," not "prismic."

 

[Brutalfly]

I know and understand that it is "Prismatic" but just like the article says collectors do refer to them as "Prismic" and "Prism" as well.

 

[Lbrewer42]

Sorry - its a CD 160 "baby signal." A CD 133 has no inner skirt. A nice find though!

The patent date is for the drip points on the bottom that were supposed to help water drain off of the insulator surface faster. Scientific testing has proven it did not work. But it was a good marketing move.

 

[Brutalfly]

Sorry - its a CD 160 "baby signal." A CD 133 has no inner skirt. A nice find though!

The patent date is for the drip points on the bottom that were supposed to help water drain off of the insulator surface faster. Scientific testing has proven it did not work. But it was a good marketing move.

Thank you for correcting my cd133 to the cd160. I appreciate it. I gotta make sure I rewrite it in my book.
It is funny how those marketing things work isn't it with the drip points.

 

[Lbrewer42]

I am currently in the process of writing my second book about the main insulator maker during this time period: Brookfield Glass Company. Before online sources started archiving articles etc., It was generally thought Hemingray was the leader in insulator production throughout the ages. I have contemporary sources during the period drip points were invented that say Brookfield had a monopoly in the insulator market. Hemingray was upcoming, but had to do something to try to take more of the Brookfield market away. Drip points and eye candy colors (marketed to ID a company's specific line on the pole - aiding company repairmen) were the H.G.Co. marketing department answers.
I believe yours is also known as a Transition mold. It started as a smooth based insulator and had the patent date later engraved onto it to make a dripped insulator.
Though the article is about CD162s (just larger sized signals of same profile), it describes the types of embossings and gives history form that time period. It also shows various 2s known on the 162s.

August 1998 CD162 H.G.CO. EMBOSSING IN TRANSITION

tinyurl.com

 

[Brutalfly]

That is some great material to read. I have skimmed some of it but will have to sit down tomorrow and read more of it. Thank you for posting that information. My dad and I collect insulators together and we learn something new everyday and we have been at it for a while. He works at an electric coop and has been for almost 30 years so it is pretty neat It will definitely give us some more to talk about.

 

[Lbrewer42]

insulators.info
NIA.org
The two largest and most comprehensive insulator sites on the web.
The former has a show calendar with the National this year in Gettysburg, PA.
On the NIA website you can find a color picture of each known CD under the insulator identification gallery and then choosing US, foreign and glass or porcelain.
Unlike bottles, there are a limited number of insulators out there so they are al cataloged in a Price Guide. But the number available is still so large no one had ever completed one of each profile (CD number) let alone color!
Here are some pics of my indoor displays. I have another cabinet not shown, too many boxes full in storage (~1000) and two outdoor display poles.

Note some of the closeups and some in the backlit case are the same as in the main window pic. I just took the pics at different times.