Insulator Profile - CD 113: Hemingray-12

Insulator Profile: HEMINGRAY-12
Copyright © 2007. All rights reserved.	CD:	113
	Manufacturer:	Hemingray
	Style Number:	12
	Trade Name:	Double Groove Pony
	Size:	2 3/8" W x 3 5/8" H
	Weight:	11 oz.
	Production Date:	Late 1890's - 1950's
	Usage:	Telephone (exchange)
	"Telephone exchange line construction requires frequent drop lines to residences and a two-groove insulator (one groove for the line, and one groove for the drop wire) is needed." "This insulator was developed to meet this need for a double-grooved pony-type insulator"

Common Variations:
Colors:	Hemingray Blue, Aqua, and Clear
Bases:	Round or Sharp drip points
Embossings:	(F-Skirt) HEMINGRAY/N^o 12 (R-Skirt) PATENT/MAY 2 1893 (F-Skirt) HEMINGRAY (R-Skirt) N^o 12 (F-Skirt) HEMINGRAY/MADE IN U.S.A. (R-Skirt) N^o 12 (F-Skirt) HEMINGRAY-12 (R-Skirt) MADE IN U.S.A. (Numbers and dots may appear below the embossing on either or both the front and the back) If your insulator has "numbers and dots" on it, you can find out more about them by reading this information about dating your insulator.

Uncommon Variations:
Colors:	Milky Aqua, Jade Green, Emerald Green, Purples
Embossings:	(F-Skirt) HEMINGRAY/N^o 9 {Note ‘N^o 9’} (R-Skirt) PATENT/MAY 2 1893 Various blotted out embossings and spelling errors