Hemingray Insulator Profile: CD 303/310  
This style is the No.76, the larger of the two Muncie Types with a 9" diameter. These are uncommon to find embossed with the No.76 style number. See also CD 302

Dimensions: 12" H x 9" W
Primary
Embossing:
HEMINGRAY
Years Produced:
c.1893-1910s
Style Numbers:76, Muncie Type
Rarity Scale (1-10): Fairly Common (4)
Usage: High Voltage
Hobby Nickname: Muncie
Voltage Rating: 22,000 Volts
Known Embossings (3) Collapse
 
HEMINGRAY [010] (F-Skirt) HEMINGRAY/PATENT MAY 2ND 1893 (R-Skirt) MUNCIE TYPE {CD 310 sleeve is unembossed} RDP Photo
HEMINGRAY [020] (F-Skirt) HEMINGRAY / PATENT MAY 2ND 1893 (R-Skirt) MUNCIE TYPE / Nº 76 {CD 310 sleeve is unembossed} RDP Photo
HEMINGRAY [030] (F-Skirt) HEMINGRAY/PATENT MAY 2ND 1893 {CD 310 sleeve is unembossed} RDP Photo

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

Unverified Embossings
Year Removed
HEMINGRAY None (F-Skirt) HEMINGRAY 76 / PATENT MAY 2ND 1893 (R-Skirt) MUNCIE RDP 1995





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