ST-6100-6499

(Other non traditional styles)
 
ST-6100
ST-6100
ST-6100
Size: Unknown
Example in Photo: Coke Bottle
Photo Credit: Cecil Munsey
Notes: Interesting story on these. They use coke bottles as insulators during WWII!. Check out the article from the Summer 2013 Drip Points Magazine for the interesting story on these.
Direct link to this insulator: