Porcelain: What is it?

By Austin Welch; posted December 9, 2017

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This insulator was found in an old West Penn Power dump, and I have previously seen a picture of one of these used, on a streetcar line. It appears to be a sort of through hole style insulator. It certainly clearly shows the Line Material logo, but what else does that say? Does the insulator have any identification or name?

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