Hemingray Insulator Profile: CD 303.5  
IMPORTANT NOTE: This one-of-a-kind insulator was STOLEN from its owner, Butch Haltman, in 2008. If you ever see this piece, please report it immediately to the National Insulator Association (www.nia.org). Thank you.

This experimental insulator is by far the rarest of the Provo series styles. The placement of a second row of drip points between the second and third skirts helps to make this style unique. It was discovered by a Hemingray employee in the Hemingray Dump in the 1960s along with several other one-of-a-kind Hemingrays. (Read the article here.) 

Dimensions: 7 3/4" H x 8" W
Primary
Embossing:
HEMINGRAY
Years Produced:
c.1893
Style Number:4 Provo Type
Rarity Scale (1-10): Unique (10)
Usage: High Voltage
Known Embossing Collapse
 
HEMINGRAY [010] (F-Skirt) HEMINGRAY/Nº 4 "PROVO" TYPE (F-Skirt) PATENT MAY 2 1893 SDP < 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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