Insulator Profile:

CD 154 Hemingray-42
Copyright 2007. All rights reserved.

CD: 154
Manufacturer: Hemingray
Style Number: 42
Trade Name: Double Petticoat, 24 oz
Size: 3 5/8" W x 4 1/8" H
Weight: 24 oz.
Production Date: 1921 - 1950's
Usage: Telegraph
"The old Hemingray Number 40, widely used from its introduction in 1910, was replaced in 1921 by the Hemingray No. 42."

"The No. 42 is a double petticoat type, with a long, smooth leakage path on the inner petticoat. It sits close to the cross-arm, thus giving the pin protection against rain splash. Its threads are accurately formed for a tight grip on the pin. The wire groove is a modern square type shown in Spec. 1-A-33 of the Association of American Railroads, and is accepted as standard for most telephone construction."

Common Variations:
Colors: Hemingray Blue, Aqua, Ice Blue, Ice Green and Clear
Bases: Round or Sharp drip points
Embossings: (F-Skirt) HEMINGRAY-42 (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: True Green, almost like a 7-Up Green; or two-tones such as Blue/Green or Clear/Blue
Bases: Smooth Base
Rare Variations:
Colors:  Carnival coating, White Milkglass
Embossings: large "MR" above the "HEMINGRAY-42" on the front skirt

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