DJE Gifts & Antique Shop
CATEGORY 3 - Item # A0303

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Height: inches Base Diameter: inches Crown Diameter: inches Item Description:

This medium brown ceramic threaded insulator contains the letter "B" on one side. It has a smooth unglazed bottom edge, and its crown is completely rounded.
These insulators were first used to insulate the telegraph lines from the wooden support poles so that the electrical signal would not be shorted to ground through the pole.

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