Rare British Porcelain Insulator

By Caleb Thimell; posted November 16, 2019

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Here's close-up of the unusual embossing on a rare threadless insulator. Incuse marking: "Made in Britain RF 090." I suppose this is intended to indicate that it could be made by any of the countries on the British Isles- England, Scotland or Ireland. If true, most likely made in Ireland otherwise it would be marked Made in England.

By the way there is a hair on the word Britain- this is not a crack.