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3 1/2" X 4 1/8" (86mm X 105mm)
(skirt incuse) BI & HC {British Insulated & Helsby Cables}
Picture courtesy Bob Scafe |
U-1925: England
|
3 1/2" X 4 1/8" (86mm X 105mm)
(skirt incuse) BI & HC {British Insulated & Helsby Cables}
Picture courtesy Bob Scafe |
This is a dryspot insulator where the center piece unscrews and allows a wire to pass up and over to allow for protection of a portion of the telephone drop wire from rain. U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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