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3 3/8" X 4 7/8" (84mm X 124mm)
(front skirt inkstamp) IS3 BENGAL POTTERIES 1972-73
Picture courtesy Nathan Holmes |
U-1940D: India
|
3 3/8" X 4 7/8" (84mm X 124mm)
(front skirt inkstamp) IS3 BENGAL POTTERIES 1972-73
Picture courtesy Nathan Holmes |
This is a dryspot insulator where the top unscrews to expose openings inside the skirt to allow a telephone drop wire to pass through the insulator to provide a "dry spot" from rain and decrease leakage loss.
U number assignment by Bob Berry July 2025.
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