Hemingray Insulator Profile: CD 286.9  
This massive insulator was one of two experimental high voltage styles produced for Westinghouse (see also CD 309.5). This insulator's pinhole is very unique. It is not threaded, but contains circular bumps or divets, possibly to be cemented to a pin. There is only one specimen known. It was discovered by a Hemingray employee in the Hemingray Dump in the 1960s. (Read the article here.) 

Dimensions: 6 1/2" H x 7 1/4" W
Primary
Embossing:
WESTINGHOUSE
Years Produced:
c.1890s
Style Number:Telluride Type C
Rarity Scale (1-10): Unique (10)
Known Embossing Collapse
 
WESTINGHOUSE [010] (F-Skirt) WESTINGHOUSE ELECTRIC & M'F'G CO./PITTSBURG, PA. (R-Skirt) "TELLURIDE" TYPE C. SB < WANTED! 

The following embossings were removed from the price guide because they could not be verified to exist:

Unverified Embossings
Year Removed





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Insulator photo courtesy of Bill Meier from www.insulators.info and used with permission.

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