Ancient Web: Elton Gish Indexed Porcelain Insulators by

Elton Gish's R=Infinity preserves specialist reference pages on antique porcelain electrical insulators, factory markings, rare styles, patents and decades of collecting research.

Original site: https://www.r-infinity.com/

Full Switchboard article: https://switchboardtechservices.com/articles/ancient-web-elton-gish-indexed-porcelain-insulators-by-glaze-and-maker/

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