Hemingray Insulator Profile: CD 203  
This is a very common later transposition style insulator, used on rural telephone lines. This style was used for swapping the positions of two lines. This would reduce the interference that would otherwise be caused by two lines running parallel to each other for too long a distance. 

Dimensions: 3 7/8" H x 3 1/4" W
Primary
Embossing:
HEMINGRAY
Years Produced:
1947-1960s
Style Number:56
Rarity Scale (1-10): Extremely Common (1)
Usage: Telephone Rural
Known Embossings (2) Collapse
 
HEMINGRAY [010] (F-Skirt) HEMINGRAY - 56 (R-Skirt) MADE IN U.S.A./[Numbers and dots] CB Photo
HEMINGRAY [020] (F-Skirt) HEMINGRAY - 56 (R-Skirt) MADE IN U.S.A./[Numbers and dots] (Top of pinhole) [Number] CB < 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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